Q.
Atomic radius of Ga (135 pm) is less than that of Al (143 pm) because
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
of the small variation in the inner core of the electronic configuration
b
the presence of additional 10d electrons which offers only poor screening effect for the outer electrons from the increased nuclear charge in gallium
c
Both (a) and (b) are true
d
Neither (a) nor (b) is true
answer is B.
(Unlock A.I Detailed Solution for FREE)
Detailed Solution
The atomic radius of Ga is less than that of Al because of the variation in the inner core of electronic configuration. The presence of additional I0 d-electrons offer only poor screening effect for the outer electrons from the increased nuclear charge in gallium.
Watch 3-min video & get full concept clarity