Question

What is the symbol for an atom containing 20 protons, 18 electrons and 22 neutrons?

• A. \(Mg^{2+}\)
• B. \(Sc^{3+}\)
• C. \(Ca^{2+}\)
• D. \(K^{+}\)

Hint:

Atomic number = Number of protons. Charge = Number of protons $-$ Number of electrons.

Answer 1

The Correct Option is C