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Structure of the Atom — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
Which of the following elements does not exhibit electrovalency?
  1. Calcium.
  2. Chromium.
  3. Carbon.
  4. Cadmium.
✓

Answer

  1. Carbon.

Explanation:

Carbon has 4 electrons in its outermost orbit. It completes its octet by sharing 4 electrons.

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