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Subjects
Science State Board
Class 9
Atomic structure
Atomic particles - Rutherford’s and Bohr’s models
18.
Valencies of some elements: Drag and drop
Exercise condition:
6
m.
Match the elements of the atoms with their valency:
Answer variants:
\(He\)
\(O\)
\(Li\)
\(N\)
S.No.
Valency
Elements
1.
\(0\)
2.
\(1\)
3.
\(2\)
4.
\(3\)
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