| 1 |
The base of modern periodic table is |
- A. Atomic number (Z)
- B. Mass number (A)
- C. Avogadro's Number
- D. Quantum Number
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| 2 |
Following are elements of 2nd period.Which atom is bigger in size? |
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| 3 |
N consist of ________________ sub shells. |
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| 4 |
The vertical columns in the periodic table are called:<br> |
- A. perlods<br>
- B. groups <br>
- C. rows <br>
- D. blocks<br>
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| 5 |
.................... of an atom is not fixed. |
- A. Size
- B. Mass
- C. Electronegativity
- D. Nuclear char
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| 6 |
Which element has highest electronegativity? |
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| 7 |
Group runs from ________________ |
- A. Top to bottom
- B. Left to right
- C. Top to right
- D. Bottom to left
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| 8 |
Which of following does not belong to p-block? |
- A. IIIA
- B. IVA
- C. VA
- D. VIB
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| 9 |
............... periodic table consist of group & periods. |
- A. Bohr
- B. Rutherford
- C. Mendeleev's
- D. Nil
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| 10 |
The no.of electrons in the valence shell of noble gases is |
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