Question

in the modern periodic table there are how many groups and period????ans me fast I willl mark u as a brilliant​

Answer 1

Explanation:

There are 18 groups and 7 periods present in the modern periodic table.

Answer 2

Solution :-

18 groups

In the periodic table, there are 7 periods and 18 groups.

seven

Periods. There are currently seven complete periods in the periodic table, comprising the 118 known elements. Any new elements will be placed into an eighth period; see extended periodic table.