Question

information regarding metallic character of 1a group and prepare a report to support the idea of metallic character increase in a group from top to bottom

Answer 1

starting with defination of metalic property and octet electronic configuration that is tending to lose eloctrons and every atom tries to attain 8 electons in valence shell for stability in this process it loses or gains electrons

in 1A group the elements need just one electron to be losed to attain octet electonic configuration so these reacts relatively more than other elements to lose electron which suits metallic property

and about increasing metallic property by movimg down in group because elements increase their size and attraction between nucleous and electron of last shell will be decreased compared to top elements so it can lose electrons more vigourosly compared to top elements which increases it's metallic nature

Answer 2

Answer:

Metallic character of IA group elements :

Alkali metals exhibit many of the physical properties common to metals but their densities lower, than those of other metals.

Alkali metals have one electron in their outer shell which is loosely bound.

They have largest atomic radii of the elements in their respective periods.

The lower ionization energies results in their metallic properties and high re-activities.

An alkali metal can easily lose it, valence electron to form positive ion.

So they have greater metallic character.

The metallic character as we move from top to bottom in group due to addition of another shell, it is easy to loose electron.

Explanation: