1.
Smallest whole part of an element
2.
positively charged particle found in the nucleus of an atom
3.
A particle with no charge
4.
Negatively charged particle found in shells around the nucleus of an atom
5.
These are listed on the Periodic Table
6.
Two or more elements not chemically bonded together
7.
Two or more elements chemically bonded together
8.
How easy it is for elements to react
9.
When a solid becomes a liquid
13.
vertical columns on the Periodic Table
14.
Horizontal rows on the Periodic Table
15.
How an element reacts or behaves
16.
He left gaps for undiscovered elements
17.
found on the left hand side of the Periodic Table
18.
found on the right hand side of the Periodic Table
