Periodic elements
Hydrogen / H / 1
P=1, n=1, e=1, mass=1, Group 1, period 1, positive
Neon / N / 10
P=10, e=10, n=10, mass=20, group 18, period 2, neutral
Rutherfordium / Rf / 104
P=104, e=104, n=157, mass=261, group 4, period 7, pos
Dubnium / Db / 105
P=105, e=105, n=163, mass=262, group 5, period 7, pos
Seaborgium / Sg / 106
P=106, e=106, n=157, mass=266, group 6, period 7, pos
Bohrium / Bh / 107
P=107, e=107, n=155, mass=264, group 7, period 7, pos
Hassium / Hs / 108
P=108, e=108, n=157, mass=269, group 8, period 7, pos
Meitnerium / Mt / 109
P=109, e=109, n=157, mass=268, group 9, period 7, neutral
Sodium / Na / 11
P=11, e=11, n=12, mass=22.9, group 1, period 3, positive
Darmstadtium / Ds / 110
P=110, e=110, n=159, mass=269, group 10, period 7, neutral
Roentigenium / Rg / 111
P=111, e=111, n=170, mass=272, group 11, period 7, neutral
Copernicium / Cn / 112
P=112, e=112, n=165, mass=277, group 12, period 7, neutral
Nihonium / Nh / 113
P=113, e=113, n=173, mass=286, group 13, period 7, neutral
Flerovium / Fl / 114
P=114, e=114, n=175, mass=289, group 14, period 7, neutral
Moscovium / Mc / 115
P=115, e=115, n=174, mass=288, group 15, period 7, neutral
Livermorium / Lv / 116
P=116, e=116, n=177, mass=293, group 16, period 7, neutral
Tennessine / Ts / 117
P=117, e=117, n=177, mass=294, group 17, period 7, neutral
Oganesson / Og / 118
P=118, e=118, n=176, mass=294, group 18, period 7, neutral
Magnesium / Mg / 12
P=12, e=12, n=12, mass=24, group 2, period 3, positive
Aluminum / Al / 13
P=13, e=13, n=14, mass=26, group 13, period 3, positive
Silicon / Si / 14
P=14, e=14, n=14, mass=28, group 14, period 3, positive
Phosphorus / P / 15
P=15, e=15, n=16, mass=30, group 15, period 3, positive
Sulfur / S / 16
P=16, e=16, n=16, mass=32, group 16, period 3, negative
Chlorine / C / 17
P=17, e=17, n=18, mass=34, group 17, period 3, negative
Argon / A / 18
P=18, e=18, n=22, mass=36, group 18, period 3, neutral
Potassium / K / 10
P=19, e=19, n=20, mass=39, group 1, period 4, positive
Helium / He / 2
P=2, e=2, n=2, mass=4, group 18, period 1, positive
Calcium / Ca / 20
P=20, e=20, n=20, mass=40, group 2, period 4, positive
Scandium / Sc / 21
P=21, e=21, n=24, mass=45, group 3, period 4, positive
Titanium / Ti / 22
P=22, e=22, n=26, mass=48, group 4, period 4, positive
Vanadium / V / 23
P=23, e=23, n=28, mass=50, group 5, period 4, positive
Chromium / Cr / 24
P=24, e=24, n=28, mass=51.9, group 6, period 4, positive
Manganese / Mn / 25
P=25, e=25, n=30, mass=55, group 7, period 4, positive
Iron / Fe / 26
P=26, e=26, n=30, mass=55.8, group 8, period 4, positive
Cobalt / Co / 27
P=27, e=27, n=32, mass=58, group 9, period 4, positive
Nickel / Ni / 28
P=28, e=28, n=30, mass=58.6, group 10, period 4, positive
Copper / Cu / 29
P=29, e=29, n=35, mass=63, group 11, period 4, positive
Lithium / Li / 3
P=3, e=3, n=4, Mass=6.9, group 1, period 2, positive
Zinc / Zn / 30
P=30, e=30, n=35, mass=65, group 12, period 4, positive
Gallium / Ga / 31
P=31, e=31, n=39, mass=69, group 13, period 4, positive
Germanium / Ge / 32
P=32, e=32, n=41, mass=72, group 14, period 4, positive
Arsenic / As / 33
P=33, e=33, n=42, mass=74.9, group 15, period 4, positive
Selenium / Se / 34
P=34, e=34, n=45, mass=78.9, group 16, period 4, positive
Bromine / Br / 35
P=35, e=35, n=45, mass=79.9, group 17, period 4, positive
Krypton / Kr / 36
P=36, e=36, n=42, mass=83.8, group 18, period 4, neutral
Rubidium / Rb / 37
P=37, e=37, n=48, mass=85, group 1, period 5, neutral
Strontium / Sr / 38
P=38, e=38, n=50, mass=87, group 2, period 5, positive
Yttrium / Y / 39
P=39, e=39, n=50, mass=88.9, group 3, period 5, positive
Beryllium / Be / 4
P=4, e=4, n=5, mass=9, group 2, period 2, positive
Zirconium / Zr / 40
P=40, e=40, n=51, mass=91, group 4, period 5, positive
Niobium / Nb / 41
P=41, e=41, n=52, mass=92.9, group 5, period 5, positive
Molybdenum / Mo / 42
P=42, e=42, n=54, mass=95.9, group 6, period 5, positive
Technetium / Tc / 43
P=43, e=43, n=55, mass=98, group 7, period 5, positive
Ruthenium / Ru /44
P=44, e=44, n=57, mass=101, group 8, period 5, positive
Rhodium / Rh / 45
P=45, e=45, n=58, mass=102.9, group 9, period 5, pos
Palladium / Pd / 46
P=46, e=46, n=60, mass=106, group 10, period 5, pos
Silver / Ag / 47
P=47, e=47, n=61, mass=107, group 11, period 5, pos
Cadmium / Cd / 48
P=48, e=48, n=64, mass=112, group 12, period 5, pos
Indium / In / 49
P=49, e=49, n=66, mass=114, group 13, period 5, pos
Boron / B / 5
P=5, e=5, n=6, mass=10.8, group 13, period 2, positive
Tin / Sn / 50
P=50, e=50, n=69, mass=118, group 14, period 5, pos
Antimony / Sb / 51
P=51, e=51, n=71, mass=121, group 15, period 5, pos
Tellerium / Te / 52
P=52, e=52, n=78, mass=127, group 16, period 5, neg
Iodine/ I / 53
P=53, e=53, n=74, mass=126, group 17, period 5, neg
Xenon / Xe / 54
P=54, e=54, n=77, mass=131, group 18, period 5, neutral
Caesium / Cs / 55
P=55, e=55, n=78, mass=132, group 1, period 6, pos
Barium / Ba / 56
P=56, e=56, n=82, mass=137, group 2, period 6, pos
Lanthanum / La / 57
P=57, e=57, n=81, mass=138.9, lanthanide, pos
Cerium / Ce / 58
P=58, e=58, n=80, mass=140, lanthanide, pos
Praseodymium / Pr / 59
P=59, e=59, n=82, mass=140.9, lanthanide, pos
Carbon / C / 6
P=6, e=6, n=6, mass=12, group 14, period 2, positive
Neodymium / Nd / 60
P=60, e=60, n=84, mass=144, lanthanide, pos
Promethium/ Pm / 61
P=61, e=61, n=85, mass 144.9, lanthanide, pos
Samarium / Sm / 62
P=62, e=62, n=82, mass=150, lanthanide, pos
Europium / Eu / 63
P=63, e=63, n=88, mass=151.9, lanthanide, pos
Gadolinium / Gd / 64
P=64, e=64, n=94, mass=157, lanthanide, pos
Terbium / Tb / 65
P=65, e=65, n=94, mass=158.9, lanthanide, pos
Dysprosium / Dy / 66
P=66, e=66, n=92, mass=162, lanthanide, pos
Holmium / Ho / 67
P=67, e=67, n=98, mass=164.9, lanthanide, pos
Erbium / Er / 68
P=68, e=68, n=94, mass=167, lanthanide, pos
Nitrogen / N / 7
P=7, e=7, n=7, mass=14, group 15, period 2, positive
Hafnium / Hf / 72
P=72, e=72, n=106, mass= 178, group 4, period 6, pos
Tantalum / Ta / 73
P=73, e=73, n=108, mass=180, group 5, period 6, pos
Tungsten / W / 74
P=74, e=74, n=110, mass=183, group 6, period 6, pos
Rhenium / Re / 75
P=75, e=75, n=111, mass=186, group 7, period 6, pos
Osmium / Os / 76
P=76, e=76, n=114, mass=190, group 8, period 6, pos
Iridium / Ir / 77
P=77, e=77, n=115, mass=192, group 9, period 6, pos
Platinum / Pt / 78
P=78, e=78, n=117, mass=195, group 10, period 6, pos
Gold / Au /79
P=79, e=79, n=118, mass=196.9, group 11, period 6, pos
Oxygen / O / 8
P=8, e=8, n=8, mass=15.9, group 16, period 2, negative
Mercury / Hg / 80
P=80, e=80, n=120, Mass=200, group 12, period 6, pos
Thallium / Tl / 81
P=81, e=81, n=123, mass=204, group 13, period 6, pos
Lead / Pb / 82
P=82, e=82, n=125, mass=207, group 14, period 6, pos
Bismuth / Bi / 83
P=83, e=83, n=126, mass=208.9, group 15, period 6, pos
Polonium / Po / 84
P=84, e=84, n=126, mass=208.9, group 16, period 6, pos
Astatine / At / 85
P=85, e=85, n=125, mass=209.9, group 17, period 6, neg
Radon / Rn / 86
P=86, e=86, n=136, mass=222, group 18, period 6, neutral
Francium / Fr / 87
P=87, e=87, n=136, mass=223, group 1, period 7, pos
Radium / Ra / 88
P=88, e=88, n=138, mass=226, group 2, period 7, pos
Fluorine / F / 9
P=9, e=9, n=10, mass=19, group 17, period 2, negative
