Question # 1

Na is symbol of.

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Neon

Nitrogen

Sodium

None of these

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

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Gas

Solid

Liquid

None of these

An alkali metal

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F

Be

Al

Na

hardest matter on the Earth is.

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Lead

Diamond

Brick

Urea

How many periods are there in the Periodic Table.

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Five

Six

Seven

Eight

An atom containing two electrons.

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Be

Li

H

He

Bromine is

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Solid

Gas

Liquid

All of these

Number of elements in short period is.

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2

8

16

32

A metal

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C

Ne

Cu

C

Mass number of oxygen is

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6

16

26

36

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

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Solid

Gas

Normal

Molten

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

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Ductile

Solid

Hard

Brilliant

Elements of group 17 are called.

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Carbon family

Noble gases

Nitrogen family

Halogen family

An element of the third period is the periodic table.

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Li

He

P

H

An element of group 17 of the Periodic Table.

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Cl

Ar

S

Si

6th period in periodic table contains elements.

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2

8

16

32

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

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4

5

6

7

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