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Section 1

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ionic bond

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Chemistry Science

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7 years ago

Date created

Mar 1, 2020

Cards (19)

Section 1

(19 cards)

ionic bond

Front

The electrostatic attraction that binds oppositely charged ions together

Back

ionic compound

Front

a compound composed of positive and negative ions

Back

metallic bond

Front

The force of attraction that holds metals together; it consists of the attraction of free-floating valence electrons for positively charged metal ions.

Back

molecular compound

Front

a compound that is composed of molecules

Back

unshared pair

Front

a pair of valence electrons that is not shared between atoms

Back

polar covalent bond

Front

A covalent bond between atoms in which the electrons are shared unequally

Back

polar molecule

Front

A molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive

Back

tetrahedral angle

Front

a bond angle of 109.5 degrees that results when a central atom forms four bonds directed toward the center of a regular tetrahedron

Back

electron dot structure

Front

a notation that depicts valence electrons as dots around the atomic symbol of the element; the symbol represents the inner electrons and atomic nucleus; also called Lewis dot structure

Back

octent rule

Front

Atoms react by gaining or losing electrons so as to acquire the stable electron structure of a noble gas, usually eight valence electrons

Back

chemical formula

Front

an expression that indicates the number and type of atoms present in the smallest representative unit of a substance

Back

alloy

Front

a mixture composed of two or more elements, at least one of which is a metal

Back

non polar covalent bond

Front

a covalent bond in which the bonding electrons are shared equally by the bonded atoms, resulting in a balanced distribution of electrical charge

Back

VSEPR theory

Front

Valence shell electron pair repulsion theory; because electron pairs repel, molecules adjust their shapes so that valence electron pairs are as far apart as possible

Back

polyatomic ion

Front

a tightly bound group of atoms that behaves as a unit and has a positive or negative charge

Back

van der Waals forces

Front

The 2 weakest intermolecular attractions. Dispersion interactions and dipole forces

Back

covalent bond

Front

bond formed by the sharing of electrons between atoms

Back

Dipole

Front

a molecule that has two poles, or regions, with opposite charges

Back

hydrogen bond

Front

attractive forces in which a hydrogen covalently bonded to a very electronegative atom is also weakly bonded to an unshared electron pair of another electronegative atom

Back