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प्रश्न
Does the emission of gamma radiation result in a change in the mass number?
उत्तर
No
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संबंधित प्रश्न
A certain radioactive nucleus emits a particle that leaves its mass unchanged, but increased its atomic number by one. Identify the particle and write its symbol.
A nucleus is \[\ce {^24_11 Na}\] is β-radioactive.
What are the numbers 24 and 11 called?
A nucleus of stable phosphorus has 15 protons and 16 neutrons.
- What is its atomic number and mass number?
- The nucleus of radio phosphorous has one neutron more than the stable nucleus. What will be its atomic number and mass number?
- What will be the atomic number and mass number of new nucleus formed by decay of a β-particle by the radio phosphorus in part (b)?
Complete the following nuclear change:
\[\ce {^a_x P -> Q + ^0_-1β}\]
Complete the following nuclear change:
\[\ce{^238_92U -> ^234_90Th}\] + ______ + energy
Complete the following nuclear change:
\[\ce {^238_92 P \text ->[α] Q \text ->[β] R \text ->[β] S}\]
An element P disintegrates by α-emission and the new element suffers two further disintegration, both by β-emission, to form an element Q. Explain that fact P and Q are isotopes.
Name the radiations that are emitted during the decay of a nucleus, which has highest penetrating power?
A radioactive nucleus X emits an alpha particle followed by two beta particles to form nucleus Y.
- With respect to the element X, where would you position the element Y in the periodic table?
- What is the general name of the elements X and Y?
- If the atomic number of Y is 80 then what is the atomic number of X?
A radioactive source emits three type of radiations.
From which part of the atom do these radiations come?
