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ollegr [7]
3 years ago
15

What is the total number of protons and neutrons in an atom called?

Chemistry
1 answer:
anzhelika [568]3 years ago
5 0

This is called the Mass Number of the isotope of the atom.

Isotopes are different forms of the same atom. They have the same number of protons  but different number of neutrons.

Carbon-12 has mass number  12 as it has 6 protons and 6 neutrons.

Carbon-14 has mass number 14 as its has 6 protons and 8 neutrons.

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what is the freezing point of a 0.195m aqueous solution of K2S? (Report amount to three decimal points)
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The freezing point depression of water is 1.86°C/m.kg 
<span>K2S dissociates: </span>
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