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11 Cards in this Set

  • Front
  • Back

ATOM

base unit of matter

Nucleus

strong forces bind protons and neutrons to gether form the nucleus

electron

its a negative charge partice (-) with 1/1840 the mass of a proton

ELEMENT

is a pure substance that consists entirely of one type of atom

Isotopes

Atoms of the same element that differ in the number of neutrons they contain are known as isotopes

Compound

is a substance formed by the chemical combination of two or more elements in definite proportions

Iconic Bond I

formed when one or more electrons are transferred from one atom to another

ion

these postively and negatively charged atoms

covalent bond

forms when electrons are shared between atoms

molecule

is the smallest unit of most compounds

vanderwaals forces

a slight attraction can develop between the oppositely charged regions of nearby molecules