Answer
The correct ion symbols are:
a. $K^+$
b. $Br^-$
c. $V^{2+}$
Work Step by Step
1. Identify the element with the atomic number equal to number of protons given on a periodic table:
a. 19: K
b. 35 : Br
c. 23: V
3. Calcule the net charge:
Charge = Number of protons - Number of electrons
a. Charge = 19 - 18 = +1
b. Charge = 35 - 36 = -1
c. Charge = 23 - 21 = +2
