Question # 1

How many subshells are there in M shell?

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2

4

3

5

Carbon -14 is used for the

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Growth of bones

Diagonosis of goiter

Age determination of old objects

All of these

The removal of electron from a neutral atom gives rise to.

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Molecular anion

Anion

Cation

Molecular Cation

d- subshell can accommodate maximum electrons.

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2

6

10

14

What does keep the particles present in the nucleus intact.

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Particles are held together by dipolar force

Particles are held together by wee nuclear force

Particles are held together by strong nuclear force

Particles are held together by electrostatic force

Rutherford used a gold foil in his experiment, which had a tickness of

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0,0002 cm

0,0001 cm

0.001 cm

0.00004cm

¹³ C and ¹⁴ C are both present in nature.

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0,1 %

1.1 %

0.9 %

1.5 %

Number of isotopes of hydrogen is

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2

5

4

3

Which Isotopes is commonly used to irradiate cancer cells.

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Cobalt -60

Iodine-23

Carbon -14

Iodine-131

What information was obtained fom discharge tube expriments?

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Electrons and protons were discovered

Structur eof atom was discovered

Neutrons and protons were discovered

Presence of nucleus in an atom was discovered

In which isotope of oxygen there are the equal numbr of protons electons and neutorns.

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O¹⁶

¹⁷O

¹⁸O

None of these

N-shell contains number of subshells.

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1

3

4

2

Proton are feflected toward plate.

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Positive

Negative

Both a and b

None of these

Number of protons in the nucleus of an atom is called.

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Atomic number

Mass Number

Mass Unit

Electron Number

Who performed fist experiment to split atom

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Bohr

Newton

Rutherford

Soddy

Chlorine has two isotopes, both of which have

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Same mass Number

Same number of electrons

Same number of neurtons

Different number of protons

The percentage of ²³⁸ U ₉₂ found in nature.

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97%

0.72%

98%

1.5%

Atom is electrically

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Positive particle

Negaitve particle

Neutral particle

None of these

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