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10 Cards in this Set

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What subatomic particles make up an atom?
protons, nuetrons, electrons
List the charge, the mass in amu., and the location of the proton.
+1 charge,
1 mass in amu,
located in the nuclues
List the charge, the mass in amu., and the location of the nuetron.
0 charge,
1 mass in amu,
Located in nucleus
List the charge, the mass in amu., and the location of the electron.
-1 charge
0 mass in amu,
Located in the orbitals outside of the nucleus
What is the elemental stage?
The elemental stage always has a neutral charge because the number of protons is always equal to the number of electrons.
Why is electron configuration important?
Electron configuration is important because it determines how a particular atom will react with atoms of other elements.
When does the ground state occur?
The ground state occurs in an atom when electrons are found in the lowest available energy level.
When does an excited state occur?
An atom is in a excited state when an atom absorbs energy and electrons move to a higher energy level.
What is an isotope?
Istopes are atoms of one element that vary only in the number of nuetrons in the nucleus.
What is a radioactive isotope?
A radioactive isotope is one in which the nucleus decays spontaneously, giving off particles and energy.