Question

The valence shell of element of atomic number 24 and 20 are

Answer 1

K. L. M. N.

atomic no. 20 (Calcium) - 2, 8, 8, 2

atomic no. 24 (Chromium) - 2, 8, 8, 6

So, N shell is the valence shell of both elements

Hope it helps you.........☺️

Answer 2

The valence shell of element of atomic number 24 and 20 are 6 and 2 respectively.

Explanation:

The s and p electrons in the outermost shell are valence electrons. Core electrons are those found in the inner shell. Valence electrons are minuscule subatomic particles that we come across as we examine and investigate an element's atom. We can trace the valence electrons and forecast the sorts of bonds with the aid of Lewis structures.

The majority of valence electrons are negatively charged particles, and they are all grouped in various orbitals or shells. Additionally, these electrons are in charge of how atoms interact with one another and create chemical bonds. However, not every electron belongs to an atom. A chemical bond or molecule can only be created by the electrons that are found in the outermost shell. Valence electrons are the name given to this sort of electron.

The no. of valence electrons in the first valence shell is 2 in the second is 8 and in the third is also 8

We also know, that atomic no.= no. of electrons

So, for an element having atomic no. 24, no. of valence electrons is $24-2-8-8=6$

So, for an element having atomic no. 20, no. of valence electrons is $20-2-8-8=2$

To learn more about valence electrons, click on the links below:

https://brainly.in/question/48874218

https://brainly.in/question/3722543

#SPJ3