The three elements A, B and C form the Döbereiner's triads. If the at – McqOptions

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1.	The three elements A, B and C form the Döbereiner's triads. If the atomic mass of element A is 7 and the atomic mass of element C is 39, what will be the atomic mass of element B?
A.	46
B.	22
C.	32
D.	23
Answer» E.

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