Question

Q6. How many periods and groups are present in the periodic 1 point
table?
O 7 periods and 18 groups
8 periods and 7 groups
7 periods and 7 groups
O 8
8 periods and 8 groups
​

Answer 1

Answer:

7 periods and 18 groups

All the different elements are arranged in a chart called the periodic table. the horizontal rows are called periods. ... the vertical columns are called groups. elements in the same group are similar to each other

.

Explanation:

●In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 3 and 4) are not numbered.

● A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons.

Answer 2

Explanation:

there are 7 periods and 18 groups