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Identify the missing particle in the fol...

Identify the missing particle in the following two reactions (I)`._9F^19 + ._1H^1 to ._8O^16` + ?
(II)`._12Mg^25 + ?to ._11Na^22 + ._2He^4`

Text Solution

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i.Since , 19+1=16+4 and 9+1 = 8+2 , the mass number of the missing element = 4 and atomic number =2. As Z=2, the element is `alpha` - particle.
`therefore` The complete equation of the reaction : `._9F^19 + ._1H^1 to ._8O^16 +._2He^4`
ii. As, 25+1 = 22 +4 and 12+1 = 11 +2 , the mass number of the missing element =1 and atomic number =1.
So, the element is proton.
`therefore` The complete equation of the reaction : `._12Mg^25 + ._1H^1 to ._11Na^22 + ._2He^4`
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