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How many valence electrons are present in sodium with atomic number 1 1 ?

How many valence electrons are present in sodium with atomic number 11?

Grade:12

2 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
one year ago
Sodiumhas onevalence electron.Valence electrons
Vikas Amritiya
askIITians Faculty 234 Points
one year ago

 

Valence electrons are found in the highest energy s and p orbitals in the main group of elements. The electron configuration for a neutral sodium is 
1s22s22p63s1
The highest energy 3s orbital contains one electron, therefore, neutral sodium atoms have one valence electron.

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