Chemistry
Grade-9
Easy

Question

A ________________________ is an electron located in the outermost shell.

  1. Alkali electron
  2. Halogen electron
  3. Noble electron
  4. Valence electron

hintHint:

Outermost shell is called valence shell.

The correct answer is: Valence electron


    • Alkali metals have one electron in their outermost shell.
    • Halogens have seven electrons in their outermost shell.
    • Noble gases have fulfilled outermost shell.
    • A valence electron is an electron located in the outermost shell.

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