Chemical Elements 118

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Element ▼ Symbol Atomic number Chemical property Origin o the name Group Period Atomic weight (u)
Nihonium Nh 113 Unknown chemical properties the Japanese name for Japan, Nihon, where the element was first synthesized 13 7
Nickel Ni 28 Transition metal from a mischievous sprite of German miner mythology, Nickel 10 4 58.6934
Neptunium Np 93 Actinide Neptune, the eighth planet in the Solar System 7
Neon Ne 10 Noble gas the Greek neos, meaning 'new' 18 2 20.1797
Neodymium Nd 60 Lan­thanide the Greek neos didymos meaning 'new twin' 6 144.242
Moscovium Mc 115 Unknown chemical properties Moscow Oblast, Russia, where the element was first synthesized 15 7
Molybdenum Mo 42 Transition metal the Greek molybdos meaning 'lead' 6 5 95.95
Mercury Hg 80 Post-​transition metal the New Latin name mercurius, named after the Roman god (Hg from former name hydrargyrum, from Greek hydr-, 'water', and argyros, 'silver') 12 6 200.592
Mendelevium Md 101 Actinide Dmitri Mendeleev, chemist and inventor 7
Meitnerium Mt 109 Unknown chemical properties Lise Meitner, physicist 9 7
Manganese Mn 25 Transition metal corrupted from magnesia negra, see Magnesium 7 4 54.938044
Magnesium Mg 12 Alkaline earth metal Magnesia, a district of Eastern Thessaly in Greece 2 3 24.305
Lutetium Lu 71 Lan­thanide Lutetia, the Latin name for Paris 6 174.9668
Livermorium Lv 116 Unknown chemical properties Lawrence Livermore National Laboratory (in Livermore, California) which collaborated with JINR on its synthesis 16 7
Lithium Li 3 Alkali metal the Greek lithos, 'stone' 1 2 6.94
Lead Pb 82 Post-​transition metal English word (plumbum in Latin) 14 6 207.2
Lawrencium Lr 103 Actinide Ernest O. Lawrence, physicist 7
Lanthanum La 57 Lan­thanide the Greek lanthanein, 'to lie hidden' 3 6 138.90547
Krypton Kr 36 Noble gas the Greek kryptos, 'hidden' 18 4 83.798
Iron Fe 26 Transition metal English word (ferrum in Latin) 8 4 55.845
Iridium Ir 77 Transition metal Iris, the Greek goddess of the rainbow 9 6 192.217
Iodine I 53 Reactive nonmetal French iode (after the Greek ioeides, 'violet') 17 5 126.90447
Indium In 49 Post-​transition metal indigo 13 5 114.818
Hydrogen H 1 Reactive nonmetal composed of the Greek elements hydro- and -gen meaning 'water-forming' 1 1 1.008
Holmium Ho 67 Lan­thanide Holmia, the New Latin name for Stockholm 6 164.93033