Write down the atomic number and mass number each of the element produced when and 92U238 radiates one Alpha particle and then successively two beta particles ?Please tell..
Answers
12th
Physics
Nuclei
Alpha Beta and Gamma Decay
α and β - particles emit...
PHYSICS
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Asked on December 30, 2019 by
Vishesh Waswani
α and β - particles emitted when uranium nucleus
92
U
238
decay to
82
Pb
214
are
MEDIUM
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ANSWER
When an alpha particle is emitted from a radioactive substance its atomic number(Z) decreases by 2 and mass number(A) decreases by 4. When β particle is emitted from a radioactive substance its atomic number(Z) increases by 1 and mass number(A) does not change.
Here, Uranium decays to lead its mass no changes to by 24 i.e.
4
24
=6α particles are emitted and hence, its atomic
number changes by 12 but the atomic numbre of P
b
is 10 this is due to emission of two β particle.
92
238
U→6α
2
4
+2β
1
0
+
82
214
Pb
Answer:
atomic number =.45
Mass number = 12
Explanation:
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