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Basic Chemistry
atoms, protons, neutrons, electrons
| Question | Answer |
|---|---|
| The center of an atom. | nucleus |
| The positively charged subatomic particle. | proton |
| The negatively charged subatomic particle. | electron |
| The subatomic particle with no charge. | neutron |
| A term that describes the number of protons in the nucleus of an atom. | atomic number |
| The term that describes the total number of protons and neutrons in the nucleus of an atom. | mass number |
| This is an atom that has lost or gained electrons. | ion |
| This term describes two atoms of the same element that have different numbers of neutrons. | isotope |
| All atoms of the same element MUST have the same number of _______________ . | protons |
| The mass of one proton equals the mass of one _____________ . | neutron |
| It takes approximately 1836 _____________ to equal the mass of one proton. | electron |
| These subatomic particles are found in the space outside of the nucleus. | electrons |
| Name the two subatomic particles that are located in the nucleus of an atom. | protons and neutrons |
| To find the number of neutrons in an atom, you subtract the atomic number from the ____________________ . | mass number |
| Cesium has an atomic number of 55. How many protons would you expect to find in the nucleus of an atom of cesium? | 55 |
| Carbon has an atomic number of 6. An isotope of carbon has a mass number of 13. How many neutrons are in this isotope? | 7 |
| A negatively charged ion is called a/an ____ | anion |
| A positively charged ion is called a/an | cation |
Created by:
johnbarbo