Question

name the two fundamental particles which carry equal and opposite charges what amount of charge the carry.

Answer 1

#The fundamental particle are # Electron and Proton which carry equal and opposite charge .
# The charge they carry is + - 1.6022*10^-19 coulombs
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Answer 2

The electron and the proton are the two fundamental particles that carry equal and opposite magnitude of charges.
Now,
After the Milikan's oil drop experiment
The value of the charge of one electron was measured as negative 1.6*10^-19 Coulomb and positive 1.6*10^-19 Coulomb for proton.