Question |
Answer |
What is an atom? |
The building block of matter |
What happens when atoms combine? |
They form different types of matter |
What is an element? |
A substance made of only one type of atom |
What is the relationship among atoms, elements, and molecules? |
They are all made up of atoms |
What is a compound? |
Two or more elements that are chemically joined |
Matter with a composition that is always the same |
Substance |
A mixture in which the substances are not evenly mixed |
Heterogeneous mixture |
Substance made of only one kind of atom |
Element |