(C) During $\beta^-$-decay,a neutron $(n)$ inside the nucleus transforms into a proton $(p)$,an electron $(e^-)$,and an antineutrino $(\bar{\nu}_e)$.T

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$A$ neutron in the nucleus decays emitting an electron

(C) During $\beta^-$-decay,a neutron $(n)$ inside the nucleus transforms into a proton $(p)$,an electron $(e^-)$,and an antineutrino $(\bar{\nu}_e)$.The process is represented as: $n \rightarrow p + e^- + \bar{\nu}_e$.Thus,the electron is created at the moment of decay and then ejected from the nucleus.

Class 12 Chemistry Nuclear Chemistry Radioactivity and a,b and g rays

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During $\beta$-decay:

A
An atomic electron is ejected
B
An electron which is already present within the nucleus is ejected
C
$A$ neutron in the nucleus decays emitting an electron
D
$A$ part of binding of the nucleus is converted into an electron

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Nuclear Chemistry

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Radioactivity and a,b and g rays

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During $\beta$-decay:

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If by mistake some radioactive substance gets inside the human body,then from the point of view of radiation damage,the most harmful will be the one which emits

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