| 1 |
Number of elements in short period is. |
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| 2 |
Mass number of oxygen is |
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| 3 |
An atom containing two electrons. |
- A. Be
- B. Li
- C. H
- D. <div>He</div>
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| 4 |
Metals are found in.................. state at room temperatures. |
- A. Gas
- B. Solid
- C. Liquid
- D. None of these
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| 5 |
How many periods are there in the Periodic Table. |
- A. Five
- B. Six
- C. Seven
- D. Eight
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| 6 |
Metals have .......... melting and boiling point. |
- A. Low
- B. High
- C. Very low
- D. Normal
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| 7 |
Atomic number of th eelement of fourth position in second period. |
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| 8 |
Allowy is ......... forms of metals mixed together. |
- A. Solid
- B. Gas
- C. Normal
- D. Molten
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| 9 |
The basic particle of an element is called. |
- A. Compound
- B. Mixture
- C. Atom
- D. None of these
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| 10 |
6th period in periodic table contains elements. |
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