| Question |
Answer |
| The part of an atom that circles the nucleus and has a negative charge. |
electron |
| The parts of an atom that are in the nucleus and have a positive charge. |
protons |
| The parts of the atom that are in the nucleus and have no charge |
neutrons |
| Everything in th world around you. |
matter |
| Small particles inside protons and nuetrons. |
quarks |
| The center of an atom that contains the protons and neutrons. |
nucleus |
| A pure substance that cannot be broken down into anything simpler. |
element |
| All matter is made up of __________________. |
elements |
| Elements are made up of _______________. |
atoms |
| The heaviest (densest) part of an atom |
nucleus |
| The number of protons in the nucleus of an atom determines its ___________________. |
atomic number |
Biology Lab Midterm
