Consider the following electron configurations to answer the questions that follow:
(i)1s 2 2s 2 2p 6 3s 1
(ii)1s 2 2s 2 2p 6 3s 2
(iii)1s 2 2s 2 2p 6 3s 2 3p 1
(iv)1s 2 2s 2 2p 6 3s 2 3p 4
(v)1s 2 2s 2 2p 6 3s 2 3p 5
-The electron configuration that belongs to the atom with the lowest second ionization energy is ________.
A)(i)
B)(ii)
C)(iii)
D)(iv)
E)(v)

Question

Consider the following electron configurations to answer the questions that follow:
(i)1s 2 2s 2 2p 6 3s 1 
(ii)1s 2 2s 2 2p 6 3s 2 
(iii)1s 2 2s 2 2p 6 3s 2 3p 1 
(iv)1s 2 2s 2 2p 6 3s 2 3p 4 
(v)1s 2 2s 2 2p 6 3s 2 3p 5 
-The electron configuration that belongs to the atom with the lowest second ionization energy is ________.
A)(i)
B)(ii)
C)(iii)
D)(iv)
E)(v)

Quizplus · Accepted Answer

The atom with the lowest second ionization energy is likely to be an alkali metal, as removing the second electron involves breaking into a new electron shell. Configuration (ii) represents sodium (Na), which is an alkali metal with a low second ionization energy.

Consider the Following Electron Configurations to Answer the Questions That