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Question : 10
Total: 36
From the following elements :
4 Be ; 9 F ; 19 K ; 20 Ca
(i) Select the element having one electron in the outermost shell.
(ii) Two elements of the same group.
Write the formula of and mention the nature of the compound formed by the union of19 K and element X ( 2 , 8 , 7 ) .
(i) Select the element having one electron in the outermost shell.
(ii) Two elements of the same group.
Write the formula of and mention the nature of the compound formed by the union of
Solution:
(i) Potassium K
(ii)Be and Ca KX and the compound is ionic in nature.
(ii)
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