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Ch. 2 Minerals Voc.

Ch. 2 Minerals Vocabulary Worksheet

QuestionAnswer
Elements the basic building blocks of minerals
Atoms smallest particles of matter
Protons found in the nucleus of an atom, has a positive charge
Neutrons found in the nucleus of an atom, has a neutral charge
Electrons found in the energy levels (shells) of an atom, has a negative charge
Energy levels also called shells, surrounds the nucleus, and contains electrons
Atomic number the number of protons in the nucleus of an atom
isotopes have the same number of protons but varying numbers of neutrons
mass number the number of neutrons and protons in the nucleus of an atom
compound consists of 2 or more elements that are chemically combined in specfific proportions
ion an atom that gains or loses electrons
ionic bond forms between positive and negative ions
covalent bond forms when atoms share electrons
metallic bond forms when metal ions share electrons
mineral are naturally occuring, a solid substance, has an orderly crystalline structure, has a definite chemical composition, and generally considered inorganic
streak the color of a nimeral in its powdered form
luster used to describe how light is reflected from the surface of a mineral
crystal form the visible expression of a mineral's internal arrangement of atoms
hardness a measure of the resistance of a mineral to being scratched
cleavage the tendency of a mineral to cleave, or break, along flat, even surfaces
fracture the uneven breakage of a mineral
density a property of all matter that is the ratio of an object's mass to its volume
Created by: Randa Tipping
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