Chapter 2 Vocab. Flashcard

Front

Smallest unit of matter: ________

Back

atom

Front

A(n) __________ is a type of atom that cannot be broken down by chemical means.

Back

element

Front

A substance made of different elements bonded in a ratio.

Back

compound

Front

An atom that has gained or lost an electron is called a _____

Back

ion

Front

A bond forms when atoms SHARE a pair of electrons.

Back

covalent

Front

Two or more atoms held by covalent bonds.

Back

molecule

Front

Attraction between a slightly positive hydrogen atom and a slightly negative atom (usually oxygen).

Back

hydrogen bond

Front

Attraction among molecules of a substance is called __________.

Back

cohesion

Front

Attraction among different substances is called ________.

Back

adhesion

Front

A _________ is a homogeneous mixture.

Back

solution