B. It has a full valence shell
Neon is considered to be "least reactive" because it has a full valence shell of electrons, which makes it stable and less likely to engage in chemical reactions.
A. It has an empty valence shell
B. It has a full valence shell
C. It has a large atomic number
D. It is very electronegative
1 answer
B. It has a full valence shell
Neon is considered to be "least reactive" because it has a full valence shell of electrons, which makes it stable and less likely to engage in chemical reactions.