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Ch 2 vocab part A

vocabulary words part a

QuestionAnswer
Matter Anything that has mass and takes up space
Atom Unable to be cut
Nucleus The center of the atom
Element apure stubstance that consists of only one type of atoms.
Atomic number Number of protons
Mass number protons plus neutrons in the nucleus of an atom
Isotopes Atoms of the same element with different numbers of protons.
Compound a substance formed by the chemical combination of two or more elements.
Bonds Hold atoms in compounds together
Valence Electrons Electronable that are available to form bonds.
Octet rule and duet rule atoms want eight electrons in their outer shell
Ion atom that has a positive or negative charge.
Ionic bonds formed when one or more electrons are transferred from on atom to another.
Covalent bonds formed when electrons are sharred between atoms.
Molecule the smallest unit of most compounds
Van der Waals forces intermolecular forces of attraction between the positeve region of one molecule an the negative region of another molecule.
Created by: MSeise
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