Question

for noble gases, ionization energy is expected to be __ and electron affinity is expected to be __
a very high, zero
b 1000 kj/mol, 0 kj/mol
c very low, negative
d low, zero

Explanation:

Noble gases have a full - outer electron shell, making it very difficult to remove an electron (high ionization energy). Also, they do not readily accept an electron as their electron configuration is stable, so electron affinity is close to zero.

Answer:

A. very high, zero