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Atoms

By:Daeja Johnson

Across
Mass of isotope
Number of protons minus the number of electrons
Neutral , 1 AMU (N0)
And inner orbital electron is captured by nucleus of own atom
Indivisible
Pieces of matter that make up atoms
Abundance of isotope in percentage
Same number of protons but different number of electrons
Average atomic mass
Negative, 0 AMU (E-)
Down
What all matter is made of
Center of the atom that is made up of protons and neutrons
Positive, 1 AMU (P+)
Electrons on the outer most energy level of an atom
Amount of time for 1/2 of a sample of radioactive atoms to decay
Highly electromagnetic waves emitted from a nucleus and it changes from an excited state to a ground state
Number of protons plus the number of neutrons
Has two protons and two neutrons and is emitted as radioactive decay
Particle that has the same mass of an electron but has a positive charge
Holds two electrons
Electron admitted from the nucleus during some kinds of radioactive decay
Number of protons