Given their location on the periodic table, identify the ionic charge for each element and predict the compound formed by the barium and chloride ions.

Explanation:

Atomic number of barium is 56 and its electronic configuration is .

Since, barium is a group 2 metal so in order to attain stability it will readily lose two electrons. Hence, barium will acquire a +2 charge and forms ion.

On the other hand, chlorine is a group 17 element and its electronic distribution is 2, 8, 7. Hence, to attain stability it will gain one electron and forms ion.

Thus, we can conclude that charge on barium ion is +2 and charge on chlorine ion is -1.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.