Question

Who published the first periodic table?

a.
Dmitri Mendeleev

b.
Henry Moseley

c.
Dalton

d.
None of the above

Earlier, how many elements of the Period Table were thought to be available naturally?

a.
118

b.
92

c.
90

d.
None of the above

Elements in the periodic table are arranged in periods (rows) and groups (columns).

True or False

How many rows are there in a Periodic Table?

a.
7

b.
9

c.
18

d.
118

How many groups are there in a Periodic Table?

a.
118

b.
18

c.
7

d.
90

Answer 1

1. Who published the first periodic table?
- **a. Dmitri Mendeleev**

2. Earlier, how many elements of the Period Table were thought to be available naturally?
- **b. 92**

3. Elements in the periodic table are arranged in periods (rows) and groups (columns).
- **True**

4. How many rows are there in a Periodic Table?
- **a. 7**

5. How many groups are there in a Periodic Table?
- **b. 18**