MCQ
The valence shell of calcium contains ___________?
- ✓$2$ electrons
- B$4$ electrons
- C$6$ electrons
- D$8$ electrons
The valency shell means the outermost shell or orbit of an element which has valence electrons or outer electrons in it.
The atomic number of calcium is $20$ and its electronic configuration is $2, 8, 8, 2$ which shows that the outermost orbit or valency shell contains $2$ electrons.
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