Name: Electrovalency
Uploaded: 2019-07-19
Duration: 1 min 51 s
Description: Do you know how chemical bonds are formed? They are formed in order to attain a stable electronic configuration. Let's watch the video to learn about the pro...

Question

How can we calculate the valency of an element? The atomic number of an element is $16$ . Write down its electronic configuration.

Accepted Answer

We can calculate the valency of an element from its valence electrons. Hence, the number of valence electrons obtained from the electronic configuration of the element gives the valency. For elements with valence electrons one, two and three, the valency is equal to the no. of valence electrons. For elements with valence electrons four, five, six, or seven, the valency is determined by subtracting the valence electrons from eight.

Given, the atomic number of the element is $= 16$ . So, it has $16$ electrons. According to the Bohr Bury scheme, the first shell ( $K$ shell) can accommodate maximum $2$ electrons. The second shell ( $L$ shell) can accommodate maximum $8$ electrons. The remaining $6$ electrons will enter into third shell ( $M$ shell). So, the electronic configuration of the element is $2, 8, 6$ . Hence, its valency is $(8 - 6) = 2$ .

How can we calculate the valency of an element? The atomic number of an element is $16$ . Write down its electronic configuration.

Important Questions on Structure of the Atom

Learn and Prepare for any exam you want !

How can we calculate the valency of an element? The atomic number of an element is 16. Write down its electronic configuration.

Important Questions on Structure of the Atom

Learn and Prepare for any exam you want !

How can we calculate the valency of an element? The atomic number of an element is $16$ . Write down its electronic configuration.