Question # 1

An atom containing two electrons.

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Be

Li

H

He

Allowy is ......... forms of metals mixed together.

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Solid

Gas

Normal

Molten

Bromine is

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Solid

Gas

Liquid

All of these

hardest matter on the Earth is.

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Lead

Diamond

Brick

Urea

4th Period is periodic table is called.

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Short period

Normal period

Long period

Very long period

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

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Low

High

Very low

Normal

A non - metal

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Na

Li

H

Be

Elements of group 17 are called.

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Carbon family

Noble gases

Nitrogen family

Halogen family

An alkali metal

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F

Be

Al

Na

Ne belongs to

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Nitrogen family

Fluorine family

Noble gases

Alkaline earth metals

Mass number of oxygen is

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6

16

26

36

Some metals can be pulled into wire This is because metals are.

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Ductile

Solid

Hard

Brilliant

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

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Gas

Solid

Liquid

None of these

The basic particle of an element is called.

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Compound

Mixture

Atom

None of these

An element of the third period is the periodic table.

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Li

He

P

H

Number of electron in the valence shell of elements of grop 16 is.

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3

6

8

16

Mg belong to the period of the Periodic Table.

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1st

2nd

3rd

4th

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