Question

With reference to the modern periodic table answer the following questions:

The horizontal rows are called -

The vertical columns are called-

The shortest period is -

The longest period is -

The group to which alkaline metals belong -

The other name for group 2 elements -

The other name for the elements in Group 17 -

Zero group is also called as this group -

The atomic numbers of the lanthanides -

The elements with atomic numbers 90 to 103 are called this.

pls pls answer these question...

Answer 1

Explanation:

1.periods

2.groups

3.1st

4.6st(7th not because it is incomplete period)

5.group 2nd

6.Alkaline earth metal

7.Halogen

8.Inert gas group, 18th group

9 .57th and it's series is from 57th to 71

10.Actinide Series

Answer 2

1. The horizontal rows are called Periods.
2. The vertical columns are called Groups/Families.
3. The shortest period is Period-1 it contains only 2 elements.
4. The longest period is Sixth period with 32 elements.
5. The group to which alkaline metals belongs is six chemical elements in group-2.
6. Other name of group 2 elements is alkaline earth metals.
7. Group 17 elements are Halogen.
8. Zero group is called noble gas.
9. Atomic no. of lanthenide is 57.
10. Those are called Actinides.

Explanation:

Hope it helped.

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