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Atoms_K.R.H
Question | Answer |
---|---|
Matter that is made up of only one type of atom. | Element. |
A negatively charged particle that orbits the nucleus of an atom. | Electron |
A positively charged particle that is present in the nucleus of an atom. | Proton |
An uncharged particle in the nucleus of an atom. | Neutron |
Region around the nucleus in which the electrons move about. | Electron cloud |
The number of protons in the nucleus of an element's atom. | Atomic number |
A wavelength pattern of visible light produced when elements are heated or electrified. | Spectral lines |
The number of neutrons plus protons in the nucleus of an atom. | Mass number |
The weighted average mass of the mixture of the isotopes for an element. | Average atomic mass |
Small particles that make up matter. | Atoms |
The massive part of an atom that contains protons and neutrons. | Nucleus |
An atom that has lost or gained electrons. | Ion |
Paths around the nucleus that electrons follow. | energy levels |
The entire range of electromagnetic waves with different frequencies. | electromagnetic spectrum |
Atoms of the same element that have different numbers of neutrons. | Isotopes |