Question

Draw the structure of phosphorus atom according to Bohr’s model of atom. Write the valency of phosphorus. (Atomic number of phosphorus = 15)

Answer 1

Structure is in the attachment..

According to Bohr's model:


In an Atom electrons revolve around the positively charged nucleus in a definite circular path called orbits or shells.


Each Orbit has a fixed energy and this circular orbits are known orbital shells.

The orbits are known as K, L, M,N….Shells.



Phosphorus


Symbol: P


Atomic number: 15


Atomic Mass: 31


Protons:15


Neutrons: 31- 15= 16


Electrons:15



Electronic configuration: 2,8,5


Ist energy level- 2

2nd energy level-8

3rd energy level-5


The valency of Phosphorus (P) is - 3.


It has 5 valence electrons in the outermost shell.

Phosphorus is a non metal  & non metals has a tendency to gain electrons.


Hence, it will gain 3 electrons  to acquire the noble gas configuration.


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Hope this will help you....