Chemistry
X[2, 8, 8, 1] and Y[2, 8, 18, 7] are two elements. Using this information complete the following:
(a) …………… is the metallic element.
(b) Formula of the molecule of Y is ……………
(c) …………… is bad conductor of electricity.
Chemical Bonding
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Answer
(a) X is the metallic element.
Reason — As X has one valence electron, hence it is a metal.
(b) Formula of the molecule of Y is Y2.
Reason — As Y requires one electron to complete its octet, so two atoms of Y will share one electron each in a covalent bond to form a molecule of Y.
(c) Y is bad conductor of electricity.
Reason — As Y is a non-metal, hence it is a bad conductor of electricity.
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