passwella.
Menu

JAMB Chemistry 2003 Question 6

Question 6

Atomic Structure

Neutral atoms of neon with atomic number 10 have the same number of electrons as

  1. A.O2+
  2. B.Ca2+
  3. C.K+
  4. D.Mg2+
Show the answer and explanation

Answer: D (Mg2+)

Explanation

Neon has 10 electrons. Mg has 12 electrons and loses 2 to form Mg2+, leaving 10.