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Atomic number and mass number

 Hello My dear Readers! 

Hopefully you all are fine and also doing experiments in your life. Let's start our today's topic. Today we will discuss atomic number and mass number. 

Atomic number:

The number of protons present in the nucleus of its atom is called atomic number. Atomic number is represented by 'Z'. All the atoms of an element have same number of protons in their nuclei so thay have same atomic number. Each individual element has specific atomic number that is called identification number. For example hydrogen have 1 proton so it's atomic number is Z=1. In oxygen all atoms have 8 protons, have atomic number Z=8. 

Mass number:

It is the sum of number of protons and number of neutrons present in the nucleus of an atom. It is represented by 'A'. 
It is calculated as:
        A=Z+n
Where n is number of neutrons. 
For example: hydrogen atom has on proton and no neutron in its nucleus, its mass number A = 1 + 0 = 1 . Carbon atom has protons and 6 neutrons, hence its mass number A = 12.


This was the short view of atomic number and mass number. I hope you get the concept. See you soon. Thank you. 

Comments

  1. AnonymousNovember 12, 2022 at 10:35 AM

    Well-done! More achievements are yet to come! Keep working.

    ReplyDelete

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