How many rows or periods are in the periodic table?

Answer 1

Th horizontal rows are referred as periods. There are 7 periods in Periodic Table.

Answer 2

In the modern Periodic Table there are seven periods. The elements across the period range from metals to non metals and ends in a noble gas. The transition elements can be found in the fourth period and downwards.

The horizontal rows in the periodic table are the periods. There are 7 periods in the periodic table. The period number is equal to the number of energy levels in an element.

Answer 3

In the modern periodic table there are seven periods. The elements across the period range from metals to non metals and ends in a noble gas. The transition elements can be found in the fourth period and downwards.

Answer 4

There are 7 rows or periods in the periodic table. Each row represents a new energy level or shell as you move down the table, indicating the increasing number of electrons orbiting the nucleus.

Answer 5

As of June 2014, there are 89 elements classified as metals on the periodic table. There are 6 metalloids and 17 nonmetals.

Answer 6

these are not called rows they are called periodes.now let us proceed there are 7 periods in the periodic table.

Answer 7

At room temperature under normal conditions there are11. H, He, N, O, F, Ne, Cl, Ar, Kr, Xe, Rn.

Answer 8

Th horizontal rows are referred as periods. There are 7 periods in periodic table.

Answer 9

The horizontal rows in the periodic table are the periods. There are 7 periods in the periodic table. The period number is equal to the number of energy levels in an element.

Answer 10

Periods are horizontal rows. There are 7 periods in periodic table.