Promethium has 61 protons and electrons; For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
7 protons, 7 neutrons and 7 electrons
4 protons, 4 electrons and 6 neutrons.
it has 44 electrons 57 neutrons and 44 protons
The phosphorus atom has 15 protons and electrons and 16 neutrons.
Sodium has 11 protons, 11 electrons and 12 neutrons.
Promethium has nine isotopes, their numbers ranging from 143 to 151. None of the isotopes are naturally occurring, yet some stars have minute amounts of promethium.
Promethium has 61 protons and electrons.For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
18 protons 18 electrons 22 neutrons
18 protons and electrons and 22 neutrons.
61 neutrons 10 electrons 46 protons
Neutrons: 58 Electrons: 45 Protons: 45
67 protons, 67 electrons and 98 neutrons
4 protons, 4 electrons and 5 neutrons
41 protons 41 electrons 52 neutrons
55 protons and electrons and 78 neutrons
There are 19 protons,20 neutrons, and 19 electrons.
Protons: 73 Neutrons: 108 Electrons: 73