Question # 1

A non - metal

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Na

Li

H

Be

Metals are found in.................. state at room temperatures.

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Gas

Solid

Liquid

None of these

Mg belong to the period of the Periodic Table.

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1st

2nd

3rd

4th

An alkali metal

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F

Be

Al

Na

Atomic number of th eelement of fourth position in second period.

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4

5

6

7

Mass number of oxygen is

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6

16

26

36

Metals have .......... melting and boiling point.

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Low

High

Very low

Normal

The basic particle of an element is called.

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Compound

Mixture

Atom

None of these

An atom containing two electrons.

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Be

Li

H

He

An element of group 17 of the Periodic Table.

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Cl

Ar

S

Si

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