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Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
The number of valence electrons determines:
  • A
    Physical properties of elements.
  • ✓
    Chemical properties of elements.
  • C
    Both physical and chemical properties of elements.
  • D
    Neither physical nor chemical properties of elements.
✓

Answer

Correct option: B.
Chemical properties of elements.

Valence electrons of an atom are those electrons that are involved in chemical bonding. When forming chemical bonds, atoms may lose, gain, or share valence electrons. An element's chemical properties, including its reactivity, depend on how easily its atoms gain, lose, or share valence electrons.

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