Chemistry College

Fill in the following chart: 100 points!
**If there is a + sign that means there are less electrons. If there is a sign, there are more electrons.

Fill In The Following Chart: 100 Points! **If There Is A + Sign That Means There Are Less Electrons.

Answers

Answer 1

Answer:

Calcium atom:
20 protons, 20 electrons
Calcium 2+ ion:
It is a calcium atom but with 2 fewer electrons, so
20 protons,  18 electrons
Oxygen atom:
8 protons and 8 electrons
Oxygen 2- ion:
It is an oxygen atom but with 2 more electrons, so
8 protons, 10 electrons
Calcium oxide:
Add protons and electrons of of Ca with O to get:
20 + 8 protons = 28 protons, 20 + 8 electrons: 28 electrons.
Alternatively, add protons and electrons of Ca{2+} and O{2-} to get the same result.

Answer 2

The correct number of protons and electrons of the given ions are as follows:

Ca atom = 20 protons, 20 electronsCa2+ ion = 20 protons, 18 electronsO atom = 8 protons, 8 electronsO2- ion = 8 protons, 10 electrons

How to calculate protons and electrons?

The number of protons and electrons in an atom or ion determines the overall charge of the ion or atom.

In a neutral atom, the number of protons and electrons are equal, hence, the overall charge of the atom is 0. However, in a charged atom (ion), the difference between the proton and electron number is the base.

It is important to note that the number of protons is the atomic number of an atom, hence, does not change. However, the number of electrons changes depending on whether electrons are gained or lost.

Learn more about protons and electrons at: https://brainly.com/question/19027296

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