Question # 1

--------------- are fundamental particles of an atom.

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Electron

Proton

Neutron

All of these

There are ............ groups in periodic table.

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2

8

18

32

Positively charged particle of an atom is called.

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Electron

Proton

Atom

Neutron

How many periods are there is the Periodic table.

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Five

Six

Seven

Eight

In .... elements are arranged in order of increasing atomic numbers.

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Group

Period

Orbit

Shell

The total numebr of electrons which M shell can accommodate

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2

8

18

32

The numebr of electorns present in an atom s equal to number of.

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Nucleus

Neutrons

Proton

Atom

The particle of an atom having negative charge on it.

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Electron

Proton

Neutron

Nucleus

Area around nucleus where electrons are found are called.

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Orbit

Shell

Both a and b

None of these

Element present in grops have same number of ....... in their outermost shell.

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Electron

Proton

Atoms

Neutron

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