ATOMS GCSE Flashcards
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16315582494 | atomic number | The number of protons in an atom | 0 | |
16315582495 | atomic mass | The total weight of an atom (or how heavy it is) | 1 | |
16315582496 | atom | A small particle that makes up most types of matter and is made up of smaller parts called protons, neutrons, and elections. | 2 | |
16315582497 | nucleus | The center part of an atom that has a positive charge. It contains protons and neutrons. | 3 | |
16315582498 | neutron | A particle in the nucleus of an atom that has no charge (uncharged). | 4 | |
16315582499 | proton | A particle in the nucleus of an atom that has a positive charge | 5 | |
16315582500 | electron | A particle with a negative charge that is found in a cloud-like formation surrounding an atom's nucleus. | 6 | |
16315582501 | Periodic Table of Elements | A chart of the elements showing the repeating pattern of their properties | 7 | |
16315582502 | matter | Anything that has mass and occupies space. It is a solid, liquid, or gas. | 8 | |
16315582503 | element | A ____________ is a substance made from only one kind of atom | 9 | |
16315582504 | mass number | = protons + neutrons | 10 | |
16315582506 | compound | When two or more elements combine to create a new pure substance. Ex. NaCl = salt | 11 | |
16315582507 | mixture | When two or more substances combine but don't create a new substance. Ex. chocolate milk | 12 |