| 1 |
How many periods are there in the Periodic Table. |
- A. Five
- B. Six
- C. Seven
- D. Eight
|
| 2 |
Mg belong to the period of the Periodic Table. |
- A. 1st
- B. 2nd
- C. 3rd
- D. 4th
|
| 3 |
Number of elements in short period is. |
|
| 4 |
Mass number of oxygen is |
|
| 5 |
Atomic number of th eelement of fourth position in second period. |
|
| 6 |
hardest matter on the Earth is. |
- A. Lead
- B. Diamond
- C. Brick
- D. Urea
|
| 7 |
Metals are found in.................. state at room temperatures. |
- A. Gas
- B. Solid
- C. Liquid
- D. None of these
|
| 8 |
An atom containing two electrons. |
- A. Be
- B. Li
- C. H
- D. <div>He</div>
|
| 9 |
An element of group 17 of the Periodic Table. |
|
| 10 |
Some metals can be pulled into wire This is because metals are. |
- A. Ductile
- B. Solid
- C. Hard
- D. Brilliant
|