Q. 234.3( 6 Votes )
The position of certain elements in the Periodic Table are shown below.
Using the above table answer the following questions:
(a) Which element will form only covalent compounds?
(b) Which element is a non-metal with valency 2?
(c) Which element is a metal with valency 2?
(d) Out of H, C, F, which has largest atomic size?
(e) Give name of family to which H, C and F belong?
Answer :
(a) Element E will form only covalent bond because it has 4 valence electrons.
(b) Element B is a non-metal with valency 2 because element B has 6 valence electrons so it can take only two electrons to complete its octet.
(c) Element D is a metal with valency 2 because it has 2 valence electrons.
(d) We know that atomic size increases from up to down in a group due to increment in number of shells. So F has largest atomic size.
(e) Noble gases is the name of family to which H, C and F belong.
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