I'm assuming the symbol actually looks like this: 181Ta5+ If that's the case, it means that the mass number is 181, the element is tantalum, and the charge is +5. The atomic number of Ta is 73 (determined from the Periodic Table, see: http://www.webelements.com), so that tells it has 73 protons. The mass number if the # of neutrons + # of protons, so it has 181 - 73 = 108 neutrons. If it has a +5 charge, it must have 5 electrons less than the number of protons, so 73 - 5 = 68 electrons.
18 protons 18 electrons 22 neutrons
41 protons 41 electrons 52 neutrons
55 protons and electrons and 78 neutrons
Protons: 73 Neutrons: 108 Electrons: 73
Protons-68 Electrons-68 Neutrons-About 99
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
Protons-68 Electrons-68 Neutrons-About 99
50 electrons, 50 protons and 56 neutrons.