by LRAGIL


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Proton
Positivley chaged particles
Electrons
Negativley charged particles
Neutrons
Neutral particles
Arrangements of the periodic table (4)
Atomic number, metal-type, main/ transition group, and family/ group number.
Group 1A
Alkalai metals- highly reactive metals
Group 2A
Alkali earth metals- reactive metals
Group 7A
Halogens
Group 8A
Noble Gasses
Ion formula
#p-#e
Notations (2)
X-a or A/Z X
Isotopes
Atoms having the same number of protons but different number of neutrons
Nuclear theory
1.) Mass of the atom are in the neucleus2.)Most of the volume of the atom is empty space where electrons are found3.) There are just as many + charges particles as there are - charges particles, resulting in a neutral atom
x of y cards