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Question

What happens to the position of an element in the periodic table when its nucleus emits (a) an αparticle,(b) aβparticle and (c) γ radiation?
Give the reason for your answer.

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Solution

During an α decay, atomic number of the nucleus decreases by 2 units. So, the nucleus shifts to the left in the periodic table.
During an β decay, atomic number of the nucleus increases by 1 units. So, the nucleus shifts to the right in the periodic table.
During γ radiation, Atomic number of the nucleus remains the same. So, the position of the nucleus remains the same in the periodic table.

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