How many electrons must be gained by the element oxygen (O) to attain noble gas electron configuration?

Nonmetals gain electrons under certain conditions to attain a noble gas electron configuration.

number of electrons: _______

Which noble gas electron configuration is attained in this process?

neon
argon
krypton
radon
xenon
helium

Solutions

Expert Solution

Number of electrons : 2

Noble gas configuration : Neon

Explanation

Atomic number of Oxygen is 8

Electronic configuration of oxygen is 1s² 2s² 2p⁴

Outer most shell (n=2) is not filled completely in this electronic configuration , two electrons are needed to completely fill the outer most shell. So, oxygen make compounds by gaining two electrons.

Atomic number of Neon is 10

Electronic configuration of Neon is 1s² 2s² 2p⁶

In this electronic configuration outermost shell is completely filled, so neon no need to gain or lose electrons and it will not make compounds.

queen_honey_blossom answered 1 year ago

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