Question

Complete the following table: $(4.4,4.5)$

Short answer

Name	Atomic Symbol	Number of Protons	Number of Neutrons	Number of Electrons
Potassium	$\begin{array}{c}41\\ 19\end{array}K$	19	22	19
Vanadium	$\begin{array}{c}51\\ 23\end{array}V$	23	28	23
Cadmium	$\begin{array}{c}108\\ 48\end{array}Cd$	48	64	48
Barium	$\begin{array}{c}138\\ 56\end{array}Ba$	56	82	56

Step-by-step solution

Given Information 

We need to complete the table.

Simplify 

Potassium- $\begin{array}{c}41\\ 19\end{array}K$

number of protons- $19$

number of neutrons -$22$

number of electrons- $19$

Vanadium-$\begin{array}{c}51\\ 23\end{array}V$

number of protons-$23$

number of neutrons - 28

number of electrons-$23$

Cadmium-localid="1652017609770" $\begin{array}{c}108\\ 48\end{array}Cd$

number of protons-$48$

number of neutrons -$64$

number of electrons- $48$

Barium- $\begin{array}{c}138\\ 56\end{array}Ba$

number of protons- $56$

number of neutrons -$82$

number of electrons -$56$