Flashcards
physics definitions
Cards in this deck (14)
- 1Atomsbasic building block of all matter
- 2nucleussmall dense region of protons and neutrons found at the centre of an atom
- 3protonpositively charged sub-atomic particle
- 4electronnegatively charged sub-atomic particle
- 5neutronneutral sub-atomic particle
- 6mass numbernumber of nucleons in the nucleus of an atom
- 7atomic numbernumber of protons in the nucleus
- 8valence electronelectron found on the outermost energy level of an atom
- 9Core electronelectron found on the inner energy levels of an atom
- 10orbitalregion in space around the nucleus of an atom in which electrons are found
- 11energy levelfixed distance from the nucleus where an electron can be found based on the amount of energy it possesses
- 12Ionsmall charged atom or group of atoms
- 13elementthe simplest type of pure substance which cannot be broken down by chemical reaction into any simpler type of substance
- 14isotopestwo or more atoms of the same element with different numbers of neutrons
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- Flashcards on physics definitions, created by Raya Morgan on 19/08/2023.
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- Raya Morgan
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