1.

If 1 microgram of radium has disintegrated for 500 years, how many alpha particles will be emitted per second

Answer»

`2.92 xx 10^(4) //s`
`292 xx 10^(4)//s`
`0.292 xx 10^(4)//s`
`29.2 xx 10^(4)//s`

SOLUTION :`2.92 xx 10^(4) ALPHA` -particles will be EMITTED per second


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