kasiebelleorlwe0 kasiebelleorlwe0

23-06-2017
Chemistry

contestada

The valence electrons of an atom of which element will feel the same effective nuclear charge as the valence electrons of a beryllium (Be) atom?

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FattyMcHippo FattyMcHippo

27-06-2017

Magnesium, calcium,strontium, barium, radium.

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