Answer:
Part 1: Sodium and Rubidium.
Part 2:
Protons = 12
reason: protons are equal to the atomic number of an atom. For Magnesium, atomic number is 12.
Neutrons:
[tex] = { \tt{24 - 12 }} \\ = { \tt{12 \: neutrons}}[/tex]
reason: neutrons is given by formula:
[tex]{ \tt{neutrons = mass \: number - atomic \: number}}[/tex]
where mass number of magnesium is 24.
electrons: = 12 electrons
reason: Magnesium atom has electrons summing up to 12
part 1: hydrogen and sodium? my memory is so bad ngl
part 2: 36 because there are 12 protons, 12 electrons, and 12 neutrons in an atom of magnesium.
Quartz, or silicon dioxide (SiO2), is one of the most abundant minerals on Earth. The diagram shows the atomic arrangement of quartz.
Based on the diagram, which statement best describes the atomic arrangement of quartz?
Group of answer choices
An extended structure that is made of repeating patterns of atoms.
A repeating pattern of small molecules that can move freely past each other
Many different kinds of molecules tha combine to form an extended structure.
Many different kinds of atoms that can move freely past each other.
Based on the atomic arrangement of quartz, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
What is quartz?Quartz is a hard crystalline mineral found within the Earth's crust and which is composed mainly of the mineral silica. Silica is mostly silicon(iv) oxide.
Quartz is colourless and its crystalline structure is of a hexagonal prism. The atoms are arranged in a regular repeating grid to form the hexagonal crystal.
Therefore, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
Learn more about quartz at: https://brainly.com/question/2284988
The chemical formula for sulfuric acid is H2SO4. In one molecule of sulfuric acid, there are _____.
two atoms of helium
two atoms of oxygen
four atoms of oxygen
four atoms of sulfur oxide
Please help for my summer school, you can take your time (:
Answer:
four atoms of oxygen
Explanation:
two atoms of hydrogen
one sulphur atom