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Vocabulary
PS4
Term | Definition |
---|---|
Metals | left of the stair step line |
Metalloid | border the star step line |
Nonmetal | right of the ster step line |
Periodic Law | repeating chemical and physical properties of elements change |
Atomic Symbol | identifies the first letterelement |
Proton | positive nucleus having a mass of 1 amu |
Netron | no charge that is located in the nucleus having a mass of 1 amu |
Electron | the electron cloud having a mass of 0 amu |