| 1 |
Atomic number of element presetnin period 2 and group 15 of the periodic table. |
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| 2 |
An element with fifteen protons in its atomic nucleus has atomic numebr. |
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| 3 |
Letter K is used to express theshell around the nucleus of an atom. |
- A. 1st
- B. 2nd
- C. 3rd
- D. 4th
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| 4 |
The total numebr of electrons which M shell can accommodate |
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| 5 |
Formula showing maximum number of electrons in a shell. |
- A. n2
- B. 2n2
- C. 3n2
- D. 4n2
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| 6 |
--------------- are fundamental particles of an atom. |
- A. Electron
- B. Proton
- C. Neutron
- D. All of these
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| 7 |
The particle of an atom having negative charge on it. |
- A. Electron
- B. Proton
- C. Neutron
- D. Nucleus
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| 8 |
The maximum numebr of electrons that N-Shell accomodate are. |
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| 9 |
How many periods are there is the Periodic table. |
- A. Five
- B. Six
- C. Seven
- D. Eight
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| 10 |
The negetively charged particle arod nucleus are called. |
- A. Electron
- B. Proton
- C. Atom
- D. Neutron
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