Question

C. FILL IN THE BLANKS WITH THE
SUITABLE WORD/S IN EACH CASE:
1. Lements at the extreme left of the modern periode
table are ........... reactive, while elements on the
extreme right (group 18)............ reactive (mos
un).
2. The element in group VIIA which is a liquid
room temperature is ............. (F. Br; 1).
3. Atomic size of neon is ............ (more/less) than
the atomic size of fluorine,
4. Increase in nuclear charge of an atom......
(decreases increases) the tendency of the atom to
lose electrons.
5. If combining atoms of a compound have nearly
similar electronegativities the bond between them
is ................ (electrovalent/covalent).
6. An atom is said to be a non metal if it...
(gains/loses) one or more electrons.
7. Element 'X' in period 3 has high electron affinity
and electronegativity. It is likely to be a ..............
(metal/non-metal).
8. Element Z in sub-group IIA is below elementy
in the same sub-group. The element Z will be
expected to have ............ (higher/lower) atomic
size and ............ (more/less) metallic character
than 'Y
9. Argon in period 3 is likely to have a ........
(larger/smaller) atomic size than chlorine and its
electron affinity value would be .......... (lessery
zero) compared to chlorine.
10. Across a period the valence electrons
(increase/decrease) while down a group they
............. (remain same/increase by 1).​

Answer 1

Explanation:

1: most reactive , least or unreactive

2:br(bromine)

3:less

4:decreases

5: covalent

6:gains

7;non- metals

8:higher;less

9:larger;zero

10: increase,increases by 1