Question

Q.3 With reference to group 1 [IA] of the periodic table - fill in the blanks with the correct word: [51
The elements are
- ſlight/heavy] - - [metals/non-metals) since their atomic size is
- [large/small]. The energy binding the atoms is - - [high/low] and hence the
elements have - [high/low) melting points. The melting points of the elements.
[increases / decreases] down the subgroup. The electropositive character - [increases / decreases]
down the subgroup and the elements are strong
- [reducing/oxidizing] agents. The element
with electronic configuration 2,8,1 will have - [higher/lower] electronaffinity and
[smaller/larger) atomic size than the element with electronic configuration 2,1.​

Answer 1

heavy

metals

large

high

high

decreases

increases

oxidizing

lower

larger