Chem Vocab 2

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20 terms

Anion

Any atom or group if atoms with a negative charge

Binary compound

A compound composed of two elements

Cation

Any atom or group of atoms with a positive charge

Chemical formula

A method to show the number and type of atoms present in the smallest representative unit of a substance

Formula unit

The lowest whole number ratio of ions in an ionic compound

Group

The vertical column of elements in the periodic table

Ion

Atom or group of atoms that has a positive or negative charge

Ionic compound

A compound composed of positive and negative ions

Metal

Class of elements that is a large majority of known elements: lustrous, malleable, ductile, conducts heat and electricity

Metalloid

Class of elements having properties of both metals and nonmetals

Molecule

A neutral chemically bonded group of atoms that act as a unit

Molecular compound

A compound that is composed of atoms

Nonmetal

Class of elements that are grouped on the right side of the periodic table: not lustrous, poor conductors of electricity and heat

Polyatomic ion

A tightly bound group of atoms that behaves as a unit and carries a charge

Transition metal

An element found in one of the B groups in the periodic table

Type 1 Binary Ionic Compound

The metal present forms only one type of cationi

Type 2 Binary Ionic Compound

The metal present can form two or more cation that have different charges

Type 3 Binary Ionic Compound

Contains only non metals

Acid

A substance that produce ion in aqueous solution

Oxyanions

An anion containing one or more oxygen atoms bonded to another elements

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