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Atom Vocabulary
The 15 vocabulary flashcards discussed in class on 8/18/14
Term | Definition |
---|---|
Model | A structure or picture of an object |
Atom | The smallest unit of matter |
Nucleus | The center of an atom which contains protons and electrons. |
Proton | Positively charged sub-atomic particles |
Neutron | A neither positively charged or negatively charged sub-atomic particle |
Electron | A negatively charged sub-atomic particle |
Atomic Number | The indicator number of protons |
Atomic Symbol/Nuclear Symbol/Chemical Symbol | The identifying symbol of an element |
Sub-atomic Particles | The smallest fragment of the smallest unit of matter |
Molecule | A group of linked atoms |
Lewis Structure | Structure that shows the bonding of atoms |
Bohr Model | A model of an atom showing a positive charged nucleus with negative charged electrons orbiting it |
Electron Shell | An orbit followed by electrons around the nucleus |
Valence Electron | An electron capable of participating in the formation of chemical bonds |
Matter | Solid, Liquid,or Gas |