Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium.
$(a)$ Classify these elements as metals,non-metals,or metalloids.
$(b)$ How many valence electrons are present in each one of them?
$(a)$ Classify these elements as metals,non-metals,or metalloids.
$(b)$ How many valence electrons are present in each one of them?
- AEka-silicon: Metalloid,Eka-aluminium: Metal
- BEka-silicon: $4$,Eka-aluminium: $3$
- CEka-silicon: Metal,Eka-aluminium: Metalloid
- DEka-silicon: Non-metal,Eka-aluminium: Metal
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