An element belongs to 4th period and group 17 of the periodic table. find out: (a) the number of valence electrons (b) is it a metal or non-metal? (c) the name of the element (d) formula of its compound with hydrogen (e) electron dot structure of this element with calcium
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a. valency is 1 and its chlorine
b.its metal
c. chlorine
d.clh2
b.its metal
c. chlorine
d.clh2
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