1 proton
1 electron
2 neutrons
mass = 3 amu
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
Neutrons and protons.
Phosphorus has an atomic no. of 15 and its atomic mass is 31.=we know,atomic no.=number of protons==also, atomic mass=no.of protons+no. of neutrons==this implies, 31=15+no. of neutrons= 31-15=no. of neutrons= 16=no. of neutrons==also,no. of protons=no, of electrons=so, total no. of protons=15total no. of electrons=15total no. of neutrons=16
# of protons = # of electrons # of protons/ electrons + # of neutrons = atomic mass
For a stable atom, no. of protons= no. of electrons no of neutrons= Atomic Mass- no. of protons
Protons - 35 Neutrons - 43 Atomic Number - 35 Electrons - 35
They are neutrons, protons and electrons.
protons plus neutrons
For a stable atom, no. of protons= no. of electrons no of neutrons= Atomic Mass- no. of protons
79? I'm pretty sure the atomic mass of Bromine is 80. Incase you were wrong, the Atomic mass = Number of protons + Neutrons, which is 80. The atomic number is 35, which is the number of protons. Protons = 35. So the No. of Neutrons = 80 ( protons & neutrons) - 35 (protons) = 45 ( No. of neutrons) and Finally for electrons = the number of protons which is 35.
Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons
Neutrons and protons are placed in the atomic nucleus; electrons move surrounding this nucleus in clouds of electrons.