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Chemistry
Basic chemistry
| Question | Answer |
|---|---|
| atom | basic unit of a chemical element |
| proton | a positively charged subatomic particle in the nucleus of an atom |
| electron | a negatively charged subatomic particle located in the orbitals around an atoms nucleus |
| neutron | a neutral ( no charge) charged subatomic particle in the nucleus of an atom |
| atomic number | the number of protons in the nucleus of an atom |
| atomic mass number | the total number of protons and neutrons in the nucleus of an atom |
| nucleus | the center of an atom; made up of protons and neutrons |
| orbital | a region in an atom where there is a high probability of finding electrons |
| group | a vertical column of elements in the periodic table; also called a family |
| period | a horizontal row of elements in the periodic table |
| valence electron | an electron in the outermost energy level of an atom |
| ion | an atom or molecule with an electric charge due to the loss or gain of one or more electrons |
| noble gases | the unreactive gaseous elements located in Group 18 of the periodic table |
| ionization | the process of adding electrons to or removing electrons from an atom or group of atoms |
Created by:
MrsWatkins