NCERT Exemplar Solutions Class 9 Science Solutions for Structure of the Atom - Exercise in Chapter 4 - Structure of the Atom

Question 27 Structure of the Atom - Exercise

Find out the valency of the atoms represented by the Fig. 4.3 (a) and (b).

Question 27 Image - Science Exemplar Problems - class 9 chapter Structure of the Atom


Atom (a) has zero valencies as it has 8 electrons in its valence shell making the configuration stable.

Atom (b) has a valency of +1 as it has 7 electrons in its outermost shell. It can accept 1 electron to achieve an octet configuration.

Connect with us on social media!
2022 © Quality Tutorials Pvt Ltd All rights reserved