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Transcript of A.P.E.M.A.N.
# of Protons = # of Electrons Protons are Subatomic Particles in Atoms giving the Atom a Positive Charge. They are in the Nucleus and contribute to the Atomic Mass. Proton Use It ! Example: Boron 5 B
Boron 10.86 If Your Wondering... How many protons and electrons an atom has ? (Don't know why you would wonder that...) But if you are... Look at the atomic number... Oh look it's atomic number is 5, Remember A.P.E. If Boron's atomic number is 5, then that must mean its original number of protons and electrons are 5.
5 Protons, 5 Electrons. Easy. A.P.E. M.A.N. M.A.N. M- Mass ( Atomic Mass ) A- Atomic Number N- Neutrons Why Do I Need This ? To Find The Number Of Neutrons In an Element Of Course. How? Like This... M.A.N. Mass - Atomic Number=
Number of Neutrons Remember ? M.A.N
N- Neutrons Remember... The Neutrons, Are Never Even Touched Or Changed In Anyway. Easy. Examples ? 5 B
Boron 10.81 So, You're Wondering Whats the Number Of Neutrons In This Atom Of Boron? Well, Since The Atomic Mass Is 10.81, You Would Round 10.81 To 11. And Subtract That By The Atomic Number 5 So 11- 5
Or the Atomic Mass - the Atomic Number It's 6. Because 11-5=6. Round Everyone always forgets to round. A.P.E.M.A.N.