Question

which group 4a element has the highest ionization energy?
a. carbon
b. silicon
c. tin
d. lead

Explanation:

Step1: Ionization energy trend

Ionization energy decreases down a group in the periodic table.

Step2: Analyze group 4A elements

Group 4A elements are \(C\), \(Si\), \(Ge\), \(Sn\), \(Pb\). Since \(C\) is at the top of the group, it has the highest ionization energy.

Answer:

A. carbon