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Atoms and Molecules 7th grade
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Atom Y contains 10 electrons and 10 Neutrons state the number of protons and mass number
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Define: 1) Atom 2) Molecule
Atom is the basic unit of matter. smallest part of element made up of P, N,E Atoms combine to make molecules. Molecule smallest part of suubstance.
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Define the term: 1) atomic number 2) mass number
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In which part of atom are the 3 subatomic particles found?
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Atom X contains 12 protons, state number of of electrons and the atomic number of X
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State the charge and mass of protons, electrons and neutrons
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