Question

(g.) How many periods and groups are present in periodic table?
(1) 7 periods and 18 groups (ii) 8 periods and 17 groups
(111) 17 periods and 7 groups (iv) 8 periods and 18 group
​

Answer 1

Answer:

7 periods and 18 groups

Answer 2

Answer:

1) 7 periods 18 groups

Explanation:

Modern periodic table consists of 7 horizontal rows known as periods and 18 vertical columns named as groups.

mark me brainliest