If a Calcium atom with atomic number 20 and mass number 41 undergoes a -beta minus The value of Z is and A is in the daughter nucleus-A- A -31- Z -41B- A -21- Z -41C- A -22- Z -41D- A -21- Z -42

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Byju's Answer

Standard IX

Physics

Beta Decay

If a Calcium ...

Question

If a Calcium atom with atomic number 20 and mass number 41 undergoes a $β^{-}$ (beta minus)
The value of Z is and A is_in the daughter nucleus.

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$A = 22$ , $Z = 41$

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$A = 21$ , $Z = 42$

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Solution

The correct option is B 41
Since in beta minus a neutron converts into a proton so the atomic number has to increase by 1.
Will the mass number change??
Hmmm...
Not exactly right.
Now I have a neutron less but a proton more, so the mass number is gonna remain unchanged. This means the Z will be 21 and A will remain 41.

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Similar questions

Q. If a Calcium atom with atomic number 20 and mass number 41 undergoes a

β^{-}

(beta minus)
The value of Z is ___ and A is ___ in the daughter nucleus.

Q. If a

_{20}^{41} C a

atom undergoes a

β

emission, then the value of

Z

isand

A

isin the daughter nucleus.

Q. 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.

Q. Assertion :

{_{z} X}^{A}

undergoes

2

α

- decays,

2

β

- decays (negative

β

) and

2

γ

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{_{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

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β

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

1

unit. In

γ

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Q. When a nucleus, having atomic number

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1) Both

Z

and

A

will decrease, if the process is

α

decay.
2.)

Z

will decrease but

A

will not change, if the process is

β^{+}

decay.
3.)

Z

will increase but

A

will not change, if the process is

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4.)

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If a Calcium atom with atomic number 20 and mass number 41 undergoes a β− (beta minus) The value of Z is__ and A is___in the daughter nucleus.

If a Calcium atom with atomic number 20 and mass number 41 undergoes a $β^{-}$ (beta minus)
The value of Z is and A is_in the daughter nucleus.