Multiple choice

The elements of the 3rd period are known as

  1. Typical elements

  2. Normal elements

  3. Representative elements

  4. Alkali metals

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The elements of the 3rd period are representative elements [Na (Z = 11) to Ar (Z = 18)] as each of them is a representative of its group.