Chapter 2.1 Vocabulary Quiz

The basic unit of matter is called an (a)   ?

The part of the atom that is at the center is the (a)   ?

The negatively charged particle is called an (a)   ?

A pure substance that consists entirely of one type of atom is called an (a)   ?

A substance formed by the chemical combination of two or more elements in definite proportions is a (a)   ?

2.      A (a)   bond is formed when one or more electron are transferred from one atom to another.

Positively and negatively charged atoms are known as (a)   ?

A (a)   bond forms when electrons are shared between atoms.

9.      The smallest units of most compounds is a (a)   ?

Atoms of the same element that differ in the number of neutrons they contain are known as (a)   ?