A certain radioactive nucleus emits a particle that leaves its mass unchanged but increases its atomic number by one. Identify the particle and write its symbol.

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Solution

A particle that leaves its mass number unchanged, but increases its atomic number by one is beta particle. The symbol of $β$ particle is given by $_{- 1}^{0} e$ or $_{- 1}^{0} β$ .

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Q. A certain radioactive nucleus emits a particle that leaves its mass unchanged, but increases its atomic number by one. Identify the particle

Q. An atomic nucleus denoted by

_{Z}^{A} X

emits an

α - p a r t i c l e

. Write an equation to show the formation of the daughter product.
A certain radioactive nucleus emits a particle that leaves it unchanged but increases its atomic number by one. Identify the particle and write its symbol.
[3 MARKS]

Q. A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus (mass number 234 and atomic number 90) by the loss of a particle. (a) What particle was emitted ?

Q. Consider the following statements:

1.

Radioactive decay is the process by which unstable atomic nuclei emit subatomic particle or radiation.

2.

When a radioactive nucleus decays, its nucleus break up, emits an alpha particle or beta particle and energy, and forms a new atom of a different element.
Which of the statement(s) given above is/are correct?

Consider a radioactive element with the nucleus 'X' having the atomic number A and the mass number Z. It emits an α particle. The change thus happens from the parent nucleus X to the daughter nucleus Y can be expressed as:

$_{Z}^{A} X Parent nucleus \to_{Z - 4}^{A - 2} Y Daughter nucleus +_{2}^{4} H e (α - particle)$

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A certain radioactive nucleus emits a particle that leaves its mass unchanged but increases its atomic number by one. Identify the particle and write its symbol.

A particle that leaves its mass number unchanged, but increases its atomic number by one is beta particle. The symbol of β particle is given by 0−1e or 0−1β.

A particle that leaves its mass number unchanged, but increases its atomic number by one is beta particle. The symbol of $β$ particle is given by $_{- 1}^{0} e$ or $_{- 1}^{0} β$ .