Question

Which of the following places the elements in the correct order of increasing first ionization energy?

A) Ca, Mg, Be

B) F, O, N

C) Li, Na, K

D) Si, P, S

Answer 1

A) Ca, Mg, Be

:) Have a nice day

Answer 2

A) Ca, Mg, Be
The first ionization energy increases as we move up a group because of the smaller atomic size and less shielding of electrons.