Respuesta :
I think the answer is Be because it will not react with the others
Answer: Option (b) is the correct answer.
Explanation:
Atomic number of Be is 4 and its electronic distribution is 2, 2. So, to attain stability it loses two electrons. Hence, it is reactive in nature.
Atomic number of neon is 10 and its electronic distribution is 2, 8. As its valence shell is completely filled so, it neither loses or gain an electron.
Therefore, it is unreactive in nature.
Atomic number of Fe is 26 and its electronic configuration is [tex][Ar]4s^{2}3d^{6}[/tex].
Hence, to become stabilized it will readily lose an electron as half-filled d-shell is more stable in nature.
Thus, we can conclude that out of the given options Ne element will not react with other elements.
