Chemistry
Grade-9
Easy

Question

What is the name of this element?

  1. Lithium
  2. Boron
  3. Carbon
  4. Neon

hintHint:

Atomic number = number of protons

The correct answer is: Neon


    • Atomic number = number of protons and atomic mass = number of protons + number of neutrons.
    • In the given model there are 10n and 10p. Hence, atomic number of the element is 10 and the element is Neon.
    • Atomic mass of the element is 20.

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