Multiple choice

In Mendeleev’s periodic table, there are _______ groups and _______ periods.

  1. 6, 8

  2. 5, 7

  3. 8, 7

  4. 7, 5

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

In Mendeleev’s periodic table, there are 8 groups, which are further subdivided into 2 parts (e.g. I A, I B) and 7 periods.