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ps4

TermDefinition
metal left side of the stair-step line
nonmetal right side of the stair-step line
metalloid border of the stair-step line
periodic law repeating chemical and physical properties of elements change
proton a positive subatomic particle that is located in the nucleus having a mass of 1amu.
neutron a subatomic particle with no charge that is located in the nucleus having a mass of 1amu.
electron a negative subatomic particle that is located in the electron cloud having a mass of 0amu
atomic symbol identifies the elements ,consists of two,or three letters
Created by: ~shea_what~
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