correctanswer correctanswer

07-12-2016
Chemistry

contestada

when group 2A element from ion they

A. lose two proton
B. gain two proton
C. lose two electron
D. gain two electron

Respuesta :

mpanderla95 mpanderla95

07-12-2016

Well, knowing that group 2A elements are metals, and metals lose electrons to gain a full electron shell, we can eliminate B and D. Knowing that these are 2 electrons, that the group 2A element provides to another atom, to form an ion.

The solution is C. Lose 2 electrons.

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