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For any large collection of randomly selected chlorine atoms:

a. what is the average atomic mass of chlorine in amu?

Sagot :

bharathparasad577

An atomic mass unit is defined as 1/12 th of the mass of carbon-12 atom.

The mass of an atom is mainly due to its protons and neutrons in the nucleus.

Weight of a proton is 1.6 x 10^-27 kg

Weight of a neutron is 1.6 x 10^-27kg

However weight of an electron is 9 x 10^-31kg and hence is negligible in calculation of amu

A chlorine atom has 17 protons in its nucleus and 18 neutrons in its nucleus

Its atomic number is 17

Amu weight of Cl= weight of protons+ weight of neutrons

        =17+18

        =35amu

Hence the average atomic mass unit of chlorine atoms will be 35 amu

Disclaimer:

The value is taken for easier calculation and is not accurate upto 3 decimals

For further reference:

https://brainly.com/question/13668134?referrer=searchResults

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