| A | B |
|---|
| charge of an electron | - 1 |
| charge of a proton | + 1 |
| made up of protons and neutrons and has a positive charge | nucleus |
| group that is stable and has a full outer shell of electrons | Noble gasses |
| atomic number is equal to | number of protons |
| states atoms can not be created nor destroyed; only rearrnaged | Law of conservation of mass |
| chemical change | atoms are rearranged; and can't get back to original form |
| bonds | sharing or giving and taking of electrons |
| equations have to be balanced because | you must end with the same thing you started with; law of conservation of mass |
| Group 1 and Group 17 | wanna be stable; wanna be noble gasses |
| atoms have no charge because | electrons and protons are equal which balance each other out for a 0 charge or neutral |
| number of protons Iodine has | 53 |
| number of neutrons Iodine has | 74 |
| number of electrons Iodine has | 53 |
| number of protons Potassium has | 19 |
| number of neutrons Potassium has | 20 |
