(a) V – 1 W – 1
(b) V – group 7 X – group 2
(c) V – period 3 X – period 4
(d) V
(e) (i) WV
(ii) XO
(f) (i) (35 – 17) = 18 neutrons
(ii) W – 19 protons
sharon kalunda answered the question on May 21, 2019 at 08:28
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