18. Four elements P.Q.R and Shave following configuration
P=2,8,6 Q=2,8 R=2,8,8,2 S=2,7
(a)Which type of compounds are formed by combination of Rand S?
(b)Which elements will not react?
(c) Give the formula of the compound formed by combination of P and R?
(d)Mention two properties of compounds formed by P and R
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(a)electrovalent compound/ionic compound
(b)Q
(c)PR
(d)(i)solid state
(ii)conduct electricity in molten or aqueous state
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Explanation:
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