Chemistry MidTerm

The study of the composition, structures, and properties of matter and the changes it undergoes.
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Terms in this set (26)
Matter state that has a definite volume and definite shape. Particles are packed tightly together.SolidMatter state that has a definite volume but an indefinite shape. Particles are packed close together but can still move by one another.LiquidMatter state that has neither definite volume nor definite shape. Particles are a great distance from one another.GasThe vertical columns of the periodic table.GroupsThe horizontal columns of the elements in the periodic table.PeriodsWhat are the 4 types of elements?Metals, Metalloids, Non-Metals, and Noble GasesWhat are the 5 stages of the scientific method?Observing, Formulating Hypotheses, Testing, Theorizing, Publish ResultsWhat is Hypothesis?A testable statementWhat is the metric units for length and mass?Length = m Mass = kgThe ratio of mass to volume, or mass divided by volume.DensityComposition of an Atom:Protons, Neutrons, and ElectronsAtoms of the same element that have different masses.IsotopeThe amount of a substance that contains as many particles as there are atoms in exactly 12 g of carbon-12.Mole6.022 x 10²³ - The number of particles in exactly one mole of a pure substance.Avogadro's NumberThe lowest energy state of an atom.Ground StateThe state of an atom that has a higher energy state than ground state.Excited State