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Earn 100

Which of the following elements will form acidic oxide?
(a)Sodium
(b)Magnesium
(c)Copper
(d)Phosphorus

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Important Questions on Classification of Elements and Periodicity in Properties
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Which one of the following is most electropositive element?

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As you move down the group, the alkali metals become _____.

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Which is a metalloid?

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Which one of the following elements exhibit maximum number of valence electrons?

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Which of the following elements does not lose an electron easily?

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To which block is related an element having an electronic configuration in the periodic table _____.

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If the valence shell electronic configuration for an element is this element will belong to the group of _____.

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Which shows variable valency _____.
