Atoms, Elements, Compounds and Molecules

Question 1

The smallest part of an element that has the properties of the element

Accepted Answer

Atom

Question 2

The simplest pure substance that cannot be broken down by physical or chemical means

Accepted Answer

Atom, Element

Question 3

Two or more atoms of the same or different element chemically combined

Accepted Answer

Molecule

Question 4

Two or more atoms of different elements chemically combined

Accepted Answer

Compound

Question 5

Which of the following is an example of a mixture?

Accepted Answer

The Sea

Question 6

A ______ is two or more substances NOT chemically combined.

Accepted Answer

mixture

Question 7

Which of the following cannot be broken down into anything simpler?

Accepted Answer

Helium

Question 8

A pure substance is made up of _____ type(s) of particle(s)

Accepted Answer

one

Questions 8