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Chem Lesson 2

Atomic Theory

Dalton's Theory -Everything is made of atoms -atoms of the same element have all the same properties -Atoms can't be destroyed or tampered with. -Atoms can combine and create other compounds. -In a chemical reaction, atoms are separated, combined, or rearranged.
Protons The positively charged part of an atom
Neutron The neutrally charged part of the atom
Proton The positivley charged part of an atom
Atomic Number The number of protons an atom has
Isotopes An atom that has the same number of protons but a different number of neutrons.
Ion When the number of electrons vary
Atomic weight (percent → decimal) (atomic weight) + (percent → decimal) (atomic weight) + . . . = average atomic weight
Created by: Sydbriggs