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Atomic Structure

Basic atomic structure, charges, abbreviations

TermDefinition
3 Basic subatomic particles Electron, Proton, Neutron
Electrons The negatively charged particles around the nucleus (in the cloud)
Protons The positively charged particles in the nucleus
Neutrons The neutral particles in the nucleus (no charge)
Nucleus The center of the atom containing both protons and neutrons
Electron Cloud the area around the nucleus where electrons can be found
Charge of a Proton 1+
Charge of a Neutron 0 (No charge)
Charge of an Electron 1-
Atomic Number = # of protons in the nucleus of an atom
Mass Number = # of protons and neutrons in the nucleus of an atom
# of Protons in Carbon 6 p+
# of Electrons in Carbon 6 e-
# of Neutrons in Carbon 6 n
# of Neutrons in Carbon 14 8 n
# of Protons in Lithium 3 p+
# of Electrons in Lithium 3 e-
# of Neutrons in Lithium 4 n
# of Neutrons in Lithium 8 5 n
Relative Mass (amu) of a Proton 1 amu
Relative Mass (amu) of a Neutron 1 amu
Relative Mass (amu) of an Electron 1/1840 amu
# of electrons is equal to... the # of protons (also = to the Atomic Number)
# of Protons in Gold-205 79
# of Electrons in Gold-205 79
# of Neutrons in Gold-205 126
Created by: lseneta
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