In which of the following decays the atomic number decreases-beta-decaybeta-decayalpha- decaygamma-decay

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In which of the following decays the atomic number decreases?
$β^{+}$ -decay
$b e t a^{-}$ -decay
$α$ - decay
$γ$ -decay

β^{+}

-decay

b e t a^{-}

-decay

α

- decay

γ

-decay

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Solution

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in $α$ decay atomic number decreases by two and in $β^{+}$ the weak interaction converts an atomic nucleus into a nucleus with atomic number decreased by one, while emitting a positron.

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Similar Questions

In which of the following decays the atomic number decreases?
(a) α-decay
(b) β⁺-decay
(c) β⁻-decay
(d) γ-decay

View Solution

STATEMENT - 1 :

_{Z} X^{A}

undergoes 2

α

decays, 2

β

decays (negative

β

) and 2 decays. As a result the daughter product is

_{Z - 2} Y^{A - 8} .

STATEMENT -2 : In

α

decay the mass number decreases by 4 unit and atomic number decreases by 2 unit. In

β

decay (negative

β

) the mass number remains unchanged and atomic number increases by 1 unit. In

γ

decay, mass number and atomic number remains unchanged.

View Solution

Assertion :

{_{z} X}^{A}

undergoes

2

α

- decays,

2

β

- decays (negative

β

) and

2

γ

-decays. As a result , the daughter product is

{_{z - 2} Y}^{A - 8}

Reason: In

α

- decay, the mass number decreases by

4

unit and atomic number decreases by

2

unit. In

β

- decay (negative

β

), the mass number remains unchanged and atomic number increaess by

1

unit. In

γ

-decay, mass number and atomic number remain unchanged

View Solution

Assertion :

_{Z} X^{4}

undergoes

2 α - d e c a y s, 2 β - d e c a y s

(negative

β

), and

2 γ - d e c a y s

. As a result, the daughter product is

_{z - 2} Y^{A - B}

Reason: In

α - d e c a y

, the mass number decreases by 4 unit and atomic number decreases by 2 unit. In

β - d e c a y

(negative

β

), the mass number remains unchanged and atomic number increases by 1 unit. In

γ - d e c a y

, mass number and atomic number remain unchanged.

View Solution

In which of the following decays the element does not change?
(a) α-decay
(b) β⁺-decay
(c) β⁻-decay
(d) γ-decay

View Solution

In which of the following decays the atomic number decreases?β+-decaybeta−-decayα- decayγ-decay

in α decay atomic number decreases by two and in β+ the weak interaction converts an atomic nucleus into a nucleus with atomic number decreased by one, while emitting a positron.

In which of the following decays the atomic number decreases?
$β^{+}$ -decay
$b e t a^{-}$ -decay
$α$ - decay
$γ$ -decay

in $α$ decay atomic number decreases by two and in $β^{+}$ the weak interaction converts an atomic nucleus into a nucleus with atomic number decreased by one, while emitting a positron.