Question

(a) How does the tendency to lose electrons change as we go down in group 1 of the periodic table? Why does it change this way?
(b) How does the tendency to gain electrons change as we go down in group 17 of the periodic table? Why does it change this way?

Answer 1

Answer:

as we go down the group 1, atomic size increases therefore nuclear energy decrease and the outermost electron will be lovely attached and it will be easier to lose that electron (a)

Answer 2

(a) In group 1, when we go down the periodic table, at every stage, one more electron shell is added and there will be an increase in the size of the atom.  

(b) in group 27, as we go down, the tendencey for gaining electrons chane in the periodic table. It decreases to iodine from bromine and increases from flourine to chlorine.

Explanation:

• (a) When there is an increase in the size of the atoms, the distance between the nucleus and the valence electrons increases.
• This results in the reduction of the force of nuclear attraction.  
• (b) As there is an increase in the size of the atom, it becomes tough for the nucleus for attracting the electron that is incoming.