1.

Which of the following make up an isotonic traid?

Answer»

`""_(32)^(78)Ge,""_(33)^(77)As,""_(31)^(74)GA`
`""_(18)^(40)AR,""_(19)^(40)K,""_(20)^(40)Ca`
`""_(92)^(233)U,""_(90)^(232)Th,""_(94)^(239)Pu`
`""_(6)^(14)C,""_(8)^(16)O,""_(7)^(15)N`

Solution :All contain 8 neutrons.


Discussion

No Comment Found