Periodic table

4. a chart organizing all known chemical elements by increasing atomic numbers
6. lasting attractions between atoms or ions
8. a measure of how hot or cold something is
12. a group of atoms held together by a chemical force
13. a measure of the amount of information on a storage medium
14. anything that has mass and takes up space
16. the state of matter in which the volume and shape of a substance are fixed
18. the change of a substance from one physical to another

1. a sample of matter, either a single element or a single compound
2. the amount of force exerted per unit area of a surface
3. the amount of space that an object takes up or occupies
5. a substance made up of atoms of two or more different elements joined by chemical bonds
7. a measure of the amount of matter in an object
9. a substance that cannot be separated or broken down into simpler substances
10. the smallest unit of an element that maintains the properties of that element
11. the state of matter that has a definite volume but not a definite shape
15. the total energy of a substances perticals
17. a form of matter that does not have a definite volume or shape