Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Although d subshell has poor screening effect and result in increase of zeff but in case of aluminium and gallium, gallium has a full new shell added to it, still it is smaller than aluminium. Why? And, we know that down the group, atomic size is the main property to study.so why do we consider zeff?

Although d subshell has poor screening effect and result in increase of zeff but in case of aluminium and gallium, gallium has a full new shell added to it, still it is smaller than aluminium. Why? And, we know that down the group, atomic size is the main property to study.so why do we consider zeff?

Grade:11

1 Answers

Vikas TU
14149 Points
4 years ago
Dear Student,
The reason d-orbitals have any kind of effect is that electrons in d-orbitals don't screen atomic charge as viably as those in s and p orbitals. This is a direct result of something many refer to as entrance .. basically the scientific states of d-orbitals keep them from enabling electrons to enter intently to the core, contrasted and electrons in s or p-orbitals. In gallium, you have 10 electrons in the filled 3d-subshell, and each of these electrons is making a marginally more regrettable showing with regards to (generally) of screening the atomic charge than the electrons in the s and p orbitals. Accordingly, the compelling atomic charge in gallium is marginally higher than that in aluminum, so the expansion in the span is a significantly littler than would be normal in view of the contrast amongst boron and aluminum, or gallium and indium.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free