Form a bond: Each electron has a charge of 1–, and each proton has a charge of 1+. You can calculate the charge of an atom by subtracting the number of electrons from the number of protons. Move an electron from the sodium to the chlorine atom. 1. Sodium has a charge of 1+ and chlorine has a charge of 1-

2. Chlorine has a charge of 1+ and sodium has a charge of 1-

3. Both atoms have a charge of 1+

4. Both atoms have a charge of 1-

1. Sodium has a charge of 1+ and chlorine has a charge of 1-

Explanation:

Sodium has 11 protons and 11 electrons. If you remove one electrons we now have only 10 electrons.

Hence; number of protons - number of electrons = 11 - 10 = +1

Sodium has a charge of +1

Chlorine has 17 electrons and 17 protons. if it gains 1 electron then it now has 18 electrons.

Hence; number of protons - number of electrons = 17 - 18 = -1

Chlorine has a charge of -1

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.