how can you determine the number of protons, electrons, neutrons in an atom?

Question

please make it fast i have to pass it

Answer 1

Get familiar with the Periodic Table...it is your friend.

# protons = the atomic number
# neutrons = atomic mass - # protons
# electrons = # protons if atom is neutral. If it's an ion, add or subtract accordingly. (YOU figure that one out...)

Answer 2

The atomic number equals the # Protons. In a neutral (non-ionic) atom that will also be the number of Electrons. Atomic weight minus atomic number equals #Neutrons

Answer 3

The number of protons and electons in an atom is equivalent to the atomic number. The number of neutrons is the atomic mass - atomic number.

Answer 4

verify out the periodic table of the climate...it promises you atomic variety...variety of protons=variety of electrons and it promises you molecular mass variety...it fairly is protons and neutrons subtract protons and you have variety of neutrons.In an ion variety of protons won't equivalent variety of electrons there'll the two be extra or much less electrons dependin on the fee of the ion

Answer 5

protons= atomic # (if you want to get scientific you can call atomic # Z)
electrons= same as protons
neutrons= atomic mass - atomic # (call this A) usually are the same as protons unless it is an ISOTOPE