An element X belongs to 3rd period and 2nd group of the modern periodic table. Write its electronic configuration. It is a metal or a nonmetal. why? Write the formula of a compound formed when X react with an element Y of electronic configuration 2, 6 and Z with electronic configuration 2,8,7 ???
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Electronic. configuration= 2,8,2
It is a metal because metals contains 1to3 elements in its valence shell and element X contains .So it is a metal.
Compound form when X element reacts with element Y
X+Y=XY
when it reacts with element Z
XZ2.
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