Question

number of unpaired electrons in na+ ion​

Answer 1

Answer:

Step-by-step explanation:

The electronic configuration of Sodium(Na) is 1s2 2s2 2p6 3s1. In 1s, 2s and 2p orbitals have two electrons so they are paired but in 3s orbital only one electron is present so Sodium has one unpaired electron.

Answer 2

Answer:

➡️Sodium electronic configuration :

Na = $1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{1}$

▪️In Na+ion there is only one atom which singly(1) occupied 3rd shell

Unpaired electrons = 1

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⚫Know More :

➡️Unpaired electrons :

▪️Unpaired electron is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair.

▪️Each atomic orbital of an atom (specified by the three quantum numbers n, l and m) has a capacity to contain two electrons (electron pair) with opposite spins.

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