| 1 |
The amount of energy given out when an electron is added to any atom is called:<br> |
- A. lattice energy <br>
- B. ionization energy<br>
- C. electronegative<br>
- D. electron affinity<br>
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| 2 |
Modern periodic table can be classified into ________________. |
- A. Elements
- B. s, p, d, f blocks
- C. Periods
- D. ROWS
|
| 3 |
Th name of chemist who arranged all the elements in the periodic tale is : |
- A. J.Newlands
- B. Columb
- C. Einstine
- D. None of these
|
| 4 |
The other name of modern periodic table is ________________ of periodic table. |
- A. Long form
- B. Simplified
- C. Simplest
- D. Nil
|
| 5 |
.................... of an atom is not fixed. |
- A. Size
- B. Mass
- C. Electronegativity
- D. Nuclear char
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| 6 |
Group runs from ________________ |
- A. Top to bottom
- B. Left to right
- C. Top to right
- D. Bottom to left
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| 7 |
________________ elements were discovered in year 1800. |
|
| 8 |
The modern periodic table is based on: |
- A. Atomic number
- B. Mass number
- C. Relative mass
- D. Nil
|
| 9 |
The no.of electrons in the valence shell of noble gases is |
|
| 10 |
The no.of elements in the first period is |
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