Question

14. (a) State the nature of compounds formed when group
17 elements combine with (i) metals (ii) non-metals.
(b) Why group 17 elements are highly reactive ?
13. (a) How many electrons do inert gases have in their
valence shells ?
(b) Name an element of group 18 which can form
compounds.
16. Name the gas used in :
(a) filling balloons
(b) light bulbs
(c) bright coloured advertising light works
17. (a) What is the name given to group 17 elements ? Why
are they called so ?
(b) Comment on the (i) reactivity (ii) colour and
(iii) physical state of group 17 elements.
18. Two elements ‘P' and 'Q' belong to the same period of the
modern periodic table and are in group 1 and group 2
respectively. Compare the following characteristics in
tabular form.
(a) number of electrons in their atoms.
(b) their tendency to lose electrons.
(c) their metallic characters.
(d) formation of their oxides.
(e) formulae of their chlorides.





Answer question number 14 to 18​

Answer 1

Answer:

14]

(a)

(I)ionic

(ii)covalent

(b)bcoz they have more electron affinity due to small size and more nuclear charge

13]

(a)8

(b) Xenon

16]

(a)helium

(b)neon