(a) (i) X
(ii) Q.
Explanation: It looses the outermost energy level most readily.
(iii) Halogens
(iv) I). Moving across a period there is increased nuclear charge.
II). Going down a group the energy levels increase in number.
(v) V- Explanation It has a complete outermost energy level/ Has a stable octet.
(vi) Z2R
maurice.mutuku answered the question on October 15, 2019 at 06:01
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