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Atoms and Elements
| Term | Definition |
|---|---|
| Atom | The basic particle from which all elements are made |
| Nucleus | The very small center core of an atom. It is made up of smaller particles called protons and neutrons |
| Neutron | A small particle in the nucleus of an atom, with no electrical charge. |
| Proton | A positively charged particle that is part of an atom’s nucleus |
| Electron | A negatively charged particle that orbits the nucleus of an atom. |
| Electron Cloud | A sphere shaped area around the nucleus where the electrons can be found. |
| Atomic Number | The number of protons that are in the nucleus. |
| Isotope | Atom with the same number of protons and a different number of neutrons. |
| Atomic Mass | The sum of the protons and neutrons in the nucleus of an atom. |
| Dmitri Mendeleev | Russian scientist who discovered a set of patterns |
| Average Atomic Mass | The average mass of all the isotopes of that element. |
| Period (on the Periodic Table) | The rows, from left to right on the Periodic Table |
| Groups (on the Periodic Table) | Elements in a column on the Periodic Table, also known as families |
Created by:
SelmaMS