Question

question: considering Bohr Bury scheme of electron distribution, which of the following is a pair of active elements?
Cl,He,Ne,Mg
a)CI,Ne
b)He,Mg
c)CI,Mg
d)He,Ne​

Answer 1

Option c) According to Bohr Bury scheme of electron distribution Cl, Mg is a pair of active elements.

• In option a, Chlorine has maximum 18 electrons in its last shell but Neon is a noble element with only 2 electrons in the last shell.
• In option b, Helium is a noble element and has 2 electrons in the last shell and Magnesium has 18 electrons in its last shell.
• In option c, Chlorine and Magnesium both have 18 electrons in the last shell.
• In option d, both Helium and Neon have 2 electrons in the last shell.
• Therefore chlorine and magnesium is a pair of active elements.

Answer 2

Answer:

C

Explanation:

a) Neon Is A Noble Gas

b) Heloum Is A Noble Gas

d) Neon Is A Noble Gas

only C) Contains The Atoms That Are A Pair Of Non Noble/Active Elements