PETA 2.4

3. formula, Shows how many atoms of each element are in the compound.
6. mass, Its units are grams/mole.
7. formula, Shows the reduced ratio of elements in the compound.
8. units, Can get by dividing ions in a compound.
11. It is commonly expressed in grams per cubic centimeter.
12. It is the surname of the maker of the mole formula.
14. It is what you call a group of elements held together by chemical bonds.
17. Used in science to describe how hot or cold an object is.
18. Can be also called anions, cations, and zwitterions depending on the electrons.

1. A pure substance that can be found in the periodic table.
2. mass, It is what you call the mass of an atom.
3. percentage, Can be obtained by dividing the molar mass of an element to the molar mass of the whole compound.
4. A unit used to measure different types of particles. (atoms, molecules, etc.)
5. A property of a matter that depends on the gravity.
6. It is what you call a group of atoms held together by chemical bonds.
9. The first element on the periodic table.
10. A thing made up of three particles (protons, neutrons and electrons).
13. Expressed in cubic units.
15. table, A useful tool that has all elements arranged based on its atomic number.
16. Term used to describe how long an object is.