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Science Review

Chemistry Review

Proton - mass, charge, location Mass= 1 amu Charge= positive Location= nucleus
Neutron - mass, charge, location Mass= 1 amu Charge= 0 Location= nucleus
Electron- mass, charge, location Mass= 0 amu Charge= negative Location= orbitals around the nucleus
Atomic Number Number on top of most periodic tables; number of protons in an atom
Mass Number Protons + Neutrons
Isotope Atom of the same element with different masses; atoms with the same number of protons but different number of neutrons
In electron configuration of 5d4 what does each of the three values tell you? 5= energy level d=block 4=location in block; number of electrons
Valence Electrons electrons in the outermost shell; maximum number is 8
Maximum number of valence electrons an atom can have 8
Lewis dot diagram diagram to represent the number of valence electrons
Ion charged atom
two particles that determine the charge of an ion protons and electrons
anion negatively charged ion
cation positively charged ion
neutral atom same number of protons and electrons
oxidation number charge of an atom; determined by the family/column on the periodic table
the roman numeral in a transition metal charge of the cation
Synthesis A + B- → AB
Decomposition AB → A + B
Single Replacement AB + C → CB- + A
Double Replacement AB + CD → AD + CB
Combustion produces CO2 + H2O; creates fire
Mole unit to count objects
Alpha decay emits a helium atom; mass decreases by 4; protons decrease by 2
Beta decay emits an electron; mass stays the same; protons increase by 1
Gamma decay emits a gamma ray; mass stays the same; protons stay the same
Fission when a nucleus splits
Fusion where two nuclei combine
Electricity flow of electrons
Static electricity electric charge that has accumulated in an object
Created by: shammer32



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