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IgorC [24]
3 years ago
12

If a nucleus decays by gamma decay to a daughter nucleus, which of the following statements about this decay are correct? (There

may be more than one correct choice.)
a)The daughter nucleus has fewer protons than the original nucleus.

b)The daughter nucleus has the same number of nucleons as the original nucleus.

c)The daughter nucleus has more protons than the original nucleus.

d)The daughter nucleus has fewer neutrons than the original nucleus. The daughter nucleus has more neutrons than the original nucleus
Physics
1 answer:
GarryVolchara [31]3 years ago
5 0

Answer: Option (b) is the correct answer.

Explanation:

A gamma particle is basically a photon of electromagnetic radiation with a short wavelength.

Symbol of a gamma particle is ^{0}_{0}\gamma. Hence, charge on a gamma particle is also 0.

For example, ^{234}_{91}Pa \rightarrow ^{234}_{91}Pa + ^{0}_{0}\gamma + Energy

So, when a nucleus decays by gamma decay to a daughter nucleus then there will occur no change in the number of protons and neutrons of the parent atom but there will be loss of energy as a nuclear reaction has occurred.

Thus, we can conclude that the statement daughter nucleus has the same number of nucleons as the original nucleus., is correct about if  a nucleus decays by gamma decay to a daughter nucleus.

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Answer:

An estimate for the time it will take for a spacecraft to travel from Earth to Mars is approximately 138.8 days

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It took 2006 to 2015 (9 years) to travel from Earth to Pluto, therefore, it can take approximately (9 years)/(23.683) ≈ 0.38 of a year which is ((9 years)/(23.683)) × 365.2422 ≈ 138.8 days for a spacecraft to travel from Earth to Mars

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3 years ago
Which of these cultures did NOT make major contributions to astronomy?
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So I would go for option b.
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3 years ago
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