Answer:
Nº of protons = Atomic number → 7Nº of neutrons = Massic number - Atomic number → 14 - 6 = 7Explanation:
Probably, you will find it useful to know how to deduct this information for any other isotope.
To interpreter the representation of an isotope, you need to know that the symbol representing the isotopes is the same as the chemical element. The representation also includes a superior number that indicates the massic number, and an inferior number that indicates the atomic number.
Isotope representation ⇒ ⁰ X ₙ
Where
X is the element o is the massic number, which is defined as the sum of the number of protons and the number of neutrons. n is the atomic number, which is the number of protons.(Note: You can also find the O symbol as m symbol. Both represent the same massic number)
When protons, neutrons, and electrons get together to form an atom, they lose part of their mass as energy. This is why the atomic weight is slightly inferior to the sum of masses.
In the periodic table, there is only one value of atomic mass, which belongs to the media mass of isotopes pondered by their abundance in nature.
So, what you need to know is that
Nº of protons = Atomic number → nNº of neutrons = Massic number - Atomic number → o - n (or m - n)Nº of Electrons = Nº of protons = Atomic number → nCarbon-14 forms in the atmosphere, it is radioactive and unstable. When they emit an electron and an antineutrino, they become Nitrogen-14.
Isotope representation ⇒ ¹⁴ C ₆
Massic number = 14Atomic number = 6So, from this information we can assume that
Nº of protons = Atomic number → 6Nº of neutrons = Massic number - Atomic number → 14 - 6 = 8 Nº of Electrons = Nº of protons = Atomic number → 6So, from this information we can assume that
Massic number = 14Atomic number = 6The same reasoning can be used to determine the number of protons and neutrons of nitrogen-14.
Isotope representation ⇒ ¹⁴ N ₇
Massic number = 14Atomic number = 7So, from this information, we can assume that
Nº of protons = Atomic number → 7Nº of neutrons = Massic number - Atomic number → 14 - 6 = 7 Nº of Electrons = Nº of protons = Atomic number → 7
pleaseeeeeeeeeee help
Which two elements, in looking at their atoms, have a total of 51 protons between them?
Question 1 options:
Magnesium and Aluminum
Lithium and Scandium
Tin and Hydrogen
both A and B
Answer:
Atomic Mass 121.76 atomic mass units
Number of Protons 51
Number of Neutrons 71
Number of Electrons 51
9 more rows
The two elements, in looking at their atoms, have a total of 51 protons between them are Magnesium and Aluminum and Lithium and Scandium so option d. both A and B.
What are protons?
The protons are + charges particles found in the nucleus of the atoms.
NO. of protons in :
Magnesium and Aluminum- Magnesium has total of 12 proton and Aluminum has 13 total protons. Lithium and Scandium- Lithium has 3 and Scandium has 21So total no. of protons= 12+13+3+21= 50.
Thus it lies in between total of 51 protons in the periodic table.
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Two fruit fly cells are observed. Cell A has 16 chromosomes and the Cell B has 8 chromosomes. Which of the following is true?
а
b
ОООО
Cell A is in interphase and cell B is in prophase.
Cell A is in metaphase and Cell B is in interphase
Cell A is in anaphase and cell B is in prophase
Both cells are in prophase
Answer:
both cells are in prophase
Explanation:
Distinguish between an acid and alkaline slant?
Answer:
Acid slant: yellow, fermentation of glucose and lactose and/or sucrose. High concentration creates excessive acid formation
Alkaline slant: red, limited glucose in the medium and limited acid formation.
The pH of acids is less than 7. Alkalis have a pH more than 7 The pH of neutral substances is 7. If metal oxides are soluble in water, they are alkaline. Non-metal oxides are acidic, if soluble in water.
What are acids?An acid is a molecule or ion that can either donate a proton (Bronsted-Lowry acid) or form a covalent bond with an electron pair (Lewis acid). The proton donors, also known as Bronsted-Lowry acids, are the first type of acid.
Only dextrose fermentation produces an alkaline/acid (red slant/yellow butt) reaction.
The fermentation of dextrose, lactose, and/or sucrose is indicated by an acid/acid (yellow slant/yellow butt) reaction.
An alkaline/alkaline reaction occurs when as a result, carbohydrate fermentation does not occur.
The presence of red (alkaline) in the slant and butt indicates that the organism being tested is a nonfermenter.
The formation of hydrogen sulfide results in a black precipitate in the butt of the tube. The splitting and cracking of the medium indicates gas production.
Thus, these are the basic difference between acid and alkaline slant.
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1. What is the main cause of cancer?
Base excision repair is responsible for fixing (select all that apply): Group of answer choices individual damaged nucleotides that minimally impact the helix structure. double stranded breaks. single stranded breaks. individual damaged nucleotides that cause a major impact to the helix structure.
Answer:
-- individual damaged nucleotides that minimally impact the helix structure.
-- single stranded breaks
Explanation:
The Base excision repair is popularly known as the BER. It is defined as the cellular mechanism which repairs the DNA that are damaged throughout the cell cycle. It helps in correcting the the small base lesions which do not distort the helix structure of the DNA significantly. It is also responsible for fixing the single stranded breaks of the DNA.
Can someone help me ASAP!!!
Answer:
rrkufhjgfyrugf5td89yed/learningnice.com/ffiuvfk/answer
Explanation: u can find the answer there
What would happen is rabbits from a warm, southern climate were moved to a cold, northern climate?
Answer:
They would freeze and it would be hard to find food because they are not accustomed to the different climate. They would also be easy prey because of the environment change they are not equipped for.
Answer:
The answer would be that they would adapt by growing thicker coats.
Explanation:
If hair growth is related to temperature then the rabbits will grow more hair to adapt the cold norther climate.
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A researcher investigates a blood disease carried by birds she isolates an organism from the blood of an infected bird she finds that the organism is unicellular and has a nucleus a cell wall and the ability to produce spores what kingdom does the organism belong to
Answer:
The organism belongs to the Protista kingdom as it is unicellular, has cell walls, and has the ability to produce spores.
What are two things you would do to protect wetlands?
Answer:
Household Plants and Gardens. By practicing a little care in our gardens, we can help the wetlands immensely
Help Wetland Wildlife.
Explanation:
Those are two things, but there's more if you need any, just comment and I'll list them to you.
Geothermal electricity-generating plants produce
Your answer:
ash.
methane.
O carbon dioxide.
no excess heat.
no greenhouse gases.
Answer:
3/C. carbon dioxide
Explanation:
write out the pathway that a drop of blood takes, starting in the right ventricle. As you describe the path, include the names of the blood vessels and the valves, and indicate if the blood is oxygenated or deoxygenated g
Answer:
The correct answer is - Right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, aorta, arteries, arterioles, capillaries, venules, veins, vena cavae
Explanation:
Throughout the vascular system or cardiovascular system, the drop of deoxygenated blood moves through right atrium and right ventricle to the lungs within the pulmonary arteries. Then the oxygenated blood transfers via pulmonary veins t the left atrium of the heart that pumps the oxygenated to the rest of the body by the left ventricle through the aorta.
Arteries help in the flow of the systemic circulation then blood moves from arterioles to capillaries. The deoxygenated blood is returned through the veins to the heart that come to the superior and inferior vena cava and back to right atrium and cirlculation repeat again.
Mercury-containing wastes are exempt from hazardous waste regulation as long as they are recycled per the Universal Waste Rule.
A) True
B) False
Answer:
It should be option a
Explanation:
It should be option a
should humans be used as subject for experiment
Answer:
Human experimentation refers to the use of human beings as experimental subjects. A subject is defined as an individual who is observed or experimented with by an investigator; an investigator is a qualified individual who conductsresearch. Humans have long been used as subjects for a variety of experiments.
Explanation:
HELP MEE
The diagram to the right shows the X chromosomes in a female fruit fly and the X and Y
chromosomes in a male fruit fly. The two fruit flies are crossed with each other. Fill in the two
chromosomes below illustrating the female offspring of the fruit flies.
Answer:
the question is not correct
Explanation:
send correct question
Answer:
A
Explanation:
What are two natural processes in which ammonia is created?
Please Help me with Question 14 and 15
Answer: 14. Kidneys. 15. D brainliest??
Explanation:
a food chain is the feeding relationships among all the organisms in an ecosystem.
true or false
Answer:
True
Explanation:
If u and y are two variables such that
du
= 4v - 3. and u = 5 when v = 2,
du/dv
find u in terms of v.
Answer:
5
Explanation:
The value of u is 5 in term of v by putting the value o v which is 2 in the formula that is du = 4v - 3. Putting the value of v = 2 we get, du = 4(2) - 3. --- du = 8 - 3. ---- du = 5. we are able to solve the question due to the presence of v value. If the v value is not present then we can't find the value of u in term of v. So we can conclude that the value of u in term of v is 5 if we put the value of v in the formula.
HELP ASAP HELP.......
Answer:
energy must equal out
Explanation:
obvious
Which phrase describes a feature of clastic sedimentary rocks?
grouped by color
formed by chemical weathering
grouped by size of rock fragments
formed from dead plants and animals
Answer:
the 2nd one
Explanation:
Answer:
B:formed by chemical weathering
Explanation:
ATP is chemical energy that all cells use.
O True
O False
Answer:
true
Explanation:
Adenosine triphosphate is broken into adenosine diphosphate, giving off energy in the process. This occurs during both cellular respiration and photosynthesis.
Answer:
TRue
Explanation:
ATP is the energy carrying molecule that is found in the cells of all living things
AG CLASS
Which of the following regions was the focus of the second Morrill Act?
Southwest
Southeast
Pacific Northwest
New England
Answer:
Pacific Northwest
Explanation:
Because u can look it up on the map to see if u are right or wrong
Answer:
Southeast
Explanation:
I picked Pacific Northwest and got it wrong.
can you please help me
Answer: 15. Oxygen. 16. Cortex. 17. epiglottis
Explanation:
Not really a homework question, just curious because I couldn't find an answer on a search engine.
I found a small, 6 legged, black bug in my backyard. In fact, they are everywhere in my yard, it doesn't annoy me whatsoever. It is a harmless bug, as I have interacted with them before. Can anyone tell me what bug it is?
Answer:
palo verde beetle
Explanation:
this was the closest match to the beetles I saw I think it is also called a black carpet beetle.
Which class of Lever is being described if you are standing on tiptoes and if: The Fulcrum is at the metatarsal and phalanges, which is at one end of this lever on the anterior side of the body. The Load is your body weight which is in the middle of this lever. The Effort is exerted by the gastrocnemius and soleus muscles at the calcaneal (Achilles') tendon on the other side of this lever on the posterior side of the body.
Answer:
Second class lever
Explanation:
A second class lever is when the resistance ( load/weight ) is placed in between the axis ( Fulcrum which is formed by the metatarsal and Phalanges ) and the force ( Achilles tendon ) that is applied to the lever. hence the class of lever being described is a second class lever
There are three classes of lever ( 1st class, 2nd class and third class ) but The most common lever found in Humans are the 3rd class levers. but standing on tiptoes by an individual is a perfect example of a 2nd class lever found in a Human.
The Load being the body weight being and in the middle of this lever is
referred to a the second class lever.
The second class lever has the load in between the effort (force) and the
fulcrum. A common example is the wheelbarrow which has the load in the
middle.
In this scenario, the load which is the body is between the
effort(gastrocnemius and soleus muscles) and the fulcrum is the phalanges
which is a characteristic of a second class lever.
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The ability of an ecosystem to support life declines sharply after a population crash
among some of the organisms. A population crash among organisms with which
characteristic could have caused the sharpest decline?
A hibernation during the winter
B mobility on land and in the air
C conversion of sunlight into food energy
D different fur coloring in summer and winter
Answer:
c
Explanation: all other traits are irrelevant and could reply to any part o the food chain, c means that the plats have dropped, meaning that the things that eat the plants wot be able to eat the plants, (primary consumers)and the secondary consumers wont be able to eat the primary consumers,then the tertiary consumers wont be able to eat the secondary consumers. In simpler terms it would cause a chain reaction that would detonate the whole foodchain.
Which set of organisms would belong to the Eukarya domain?
Answer:
All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.
Answer:
All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.
Explanation:
penge like
5. What are the other names and functions of ethyl alcohol?
Answer:
Ethanol, also called ethyl alcohol, grain alcohol, or alcohol, a member of a class of organic compounds that are given the general name alcohols; its molecular formula is C2H5OH.
Answer:
Ethyl alcohol is known as pure alcohol or Ethanol.
It can be used for the making of alcoholic beverages like beer and in medicine as a solvent.
Which of the following is NOT a rapid (fast) change in Earth's surface? *
1 point
landslides
volcanoes
deltas
earthquakes
HELPPPPP PLZ NEED IT BY TODAY PLLZZZZZZ 10 PIONTS
Answer:
delta
Explanation:
deltas take time to cause changes in the earth's surface as it takes time for water to erode and change things. volcanoes takes minutes to burn and ruin anything in its path, and landslides destroys everything in its path as well immediately.
A rapid or fast change can be defined as one that occurs quickly within a short amount of time.
Among the given example of changes, the types of changes are as follows:
Landslides - It is a result of imperceptive downslope movement and can occur within 10 seconds.Volcanoes - The eruption of volcanoes takes only a few seconds.deltas - The slow and steady flow of rivers form deltas and may take up to thousands of years.Earthquakes - It occurs within a few seconds after the fault ruptures and the ground shakes.Thus, the change that is not rapid is the formation of deltas.
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