<P> Electric charge is a conserved property ; the net charge of an isolated system , the amount of positive charge minus the amount of negative charge , can not change . Electric charge is carried by subatomic particles . In ordinary matter , negative charge is carried by electrons , and positive charge is carried by the protons in the nuclei of atoms . If there are more electrons than protons in a piece of matter , it will have a negative charge , if there are less it will have a positive charge , and if there are equal numbers it will be neutral . Charge is quantized ; it comes in integer multiples of individual small units called the elementary charge , e , about 6981160200000000000 ♠ 1.602 × 10 coulombs , which is the smallest charge which can exist free ( particles called quarks have smaller charges , multiples of 1 / 3e but they are only found in combination ) . The proton has a charge of + e , and the electron has a charge of − e . </P>
<P> Electric charge is a conserved property ; the net charge of an isolated system , the amount of positive charge minus the amount of negative charge , can not change . Electric charge is carried by subatomic particles . In ordinary matter , negative charge is carried by electrons , and positive charge is carried by the protons in the nuclei of atoms . If there are more electrons than protons in a piece of matter , it will have a negative charge , if there are less it will have a positive charge , and if there are equal numbers it will be neutral . Charge is quantized ; it comes in integer multiples of individual small units called the elementary charge , e , about 6981160200000000000 ♠ 1.602 × 10 coulombs , which is the smallest charge which can exist free ( particles called quarks have smaller charges , multiples of 1 / 3e but they are only found in combination ) . The proton has a charge of + e , and the electron has a charge of − e . </P>
what kind of charge does an object that has an excess of electrons have
what kind of charge does an object that has an excess of electrons have
negative
negative