| 1 |
The elements of group 17 are called: |
- A. Carbon family
- B. Noble gases
- C. Alkaline earth metals
- D. Halogen family
|
| 2 |
D-block consists of: |
- A. 4th,5th & 6th periods
- B. 2nd, 3rd & 4th periods
- C. 1st, 2nd, & 3rd periods
|
| 3 |
Following are elements of 2nd period.Which atom is bigger in size? |
|
| 4 |
The repetition of a property after a certain interval is: |
- A. Periodicity
- B. Properties
- C. Periodicity of properties
- D. None
|
| 5 |
________________ is the shortest period. |
- A. 6th
- B. 8th
- C. 2nd
- D. 1st
|
| 6 |
The base of modern periodic table is |
- A. Atomic number (Z)
- B. Mass number (A)
- C. Avogadro's Number
- D. Quantum Number
|
| 7 |
.................... of an atom is not fixed. |
- A. Size
- B. Mass
- C. Electronegativity
- D. Nuclear char
|
| 8 |
The modern periodic table is based on: |
- A. Atomic number
- B. Mass number
- C. Relative mass
- D. Nil
|
| 9 |
The elements of group 3 to 12 are called |
- A. Normal elements
- B. Transition elements
- C. Radioactive elements
- D. None of these
|
| 10 |
The 2nd and third periods are called |
- A. short period
- B. Normal period
- C. Long period
- D. Very long period
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