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Chem Chap 21 Sec 1
The Nucleus
Question | Answer |
---|---|
Atomic nuclei are made up of | protons and neutrons |
Atomic nuclei are made of protons and neutrons, which are collectively called | nucleons. |
In Nucleus Chemistry an atom that is identified by the number of protons and neutrons in its nucleus is called | nuclide |
In the symbol 228/88Ra what is the superscript and the subscript meant | the superscript is the mass number and the subscript is the atomic number |
The same nuclide 228/88Ra can also be written as | radium-228, where the mass number is written following the element name. |