The study of chemicals and bonds is called chemistry.
The correct answer is 50, 50, and 70.
In an element, there are the following things:-
In elements, the number of protons and electrons are the same. hence, the number of electrons and protons in an element is 50.
The neutrons are defined as the proton minus mass number. Hence, the number of neutrons is 120-50=70
Hence, the answer is 50, 50, and 70
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