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Subjects
Science CBSE
Class 10
Metals and non-metals
The extraction, classification and properties
7.
Electron distribution or electronic configuration of elements
Exercise condition:
2
m.
1
.
The total number of valence electrons in \(Be\) atom is
\(4\)
\(2\)
\(3\)
2
.
The total number of electrons in the L shell of \(Ca\) is
\(2\)
\(6\)
\(8\)
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