Question

18. i) What is the name given to elements of group 17 ?
ii) Does the atomic number of an element change when it loses electrons to form an ion?
iii) What is green vitriol? Give its formula.
iv) What is the colour of methyl orange in acidic solution?
v)Is the law of conservation of mass observed in a skeletal equation?​

Answer 1

Answer:

Electronic configuration of Cl (Z = 17) = 2, 8, 7. (b) Valency of Cl = 8 - 7 = 1

(c) Group to which Cl belongs= 17 (d) Type of ion formed by Cl = Anion (Cl−).

(e) Formula of compound with other elements (M) =MClx.

Here x is the valency of the element.

Answer 2

Answer:

chlorine

Yes

Explanation:

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