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Atoms

Sara Fike 8/26/2018
Across
a region in an atom where there is a high probability of finding electrons
A standard unit of mass that quantifies mass on an atomic or molecular scale
The negatively charged particles found all atoms
An ion with a net positive charge. The loss of one or more electrons
The number of protons in the nucleus of an atom.
An ion with a net negative charge. The gain of one or more electrons
The particles of the nucleus that have no charge.
Down
SI unit for the amount of a substance whose number of particles is the same as the number of atoms
The sum of the protons and neutrons in an atom.
An electron in one of the outer shells of an atom that can participate in forming chemical bonds with other atoms.
an atom that has the same number of protons as other atoms of the same element but has a different number of neutrons.
The positively charged particles of the nucleus.
The tiny, extremely dense, positively charged region in the center of the atom.
a particle of electromagnetic radiation having zero mass and carrying quantum energy