Multiple choice In Mendeleev’s periodic table, there are _______ groups and _______ periods. 6, 8 5, 7 8, 7 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.