An atom Y(atomic no.90) loses 2 beta particles one after the other to give a stable species Z.what would be the atomic no.of Z?
88. 90. 91. 92

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Solution

In beta particle decay,
there will be no change in atomic mass but change will be there in atomic number by 1 unit.

For 2 beta particle decay there will be increase in atomic number by 2 units.
therefore 90 will change to 92 by beta decay.
Y₉₀→ Z₉₂+2 e^-

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An atom Y(atomic no.90) loses 2 beta particles one after the other to give a stable species Z.what would be the atomic no.of Z?88. 90. 91. 92

In beta particle decay, there will be no change in atomic mass but change will be there in atomic number by 1 unit. For 2 beta particle decay there will be increase in atomic number by 2 units. therefore 90 will change to 92 by beta decay. Y90 → Z92 +2 e-

An atom Y(atomic no.90) loses 2 beta particles one after the other to give a stable species Z.what would be the atomic no.of Z?
88. 90. 91. 92

In beta particle decay,
there will be no change in atomic mass but change will be there in atomic number by 1 unit.

For 2 beta particle decay there will be increase in atomic number by 2 units.
therefore 90 will change to 92 by beta decay.
Y₉₀→ Z₉₂+2 e^-