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Transition Metals
Chemical Properties, Physical Properties and General Information


Radioactive Material Sign
Radioactive Natural Element		 Radioactive Material Sign
Radioactive Synthetic Element		 Toxic Material Sign
Toxic Element
Name Sym. No. Atomic
Weight		 Melting
Point		 Boiling
Point		 Phase Density Valence
Electrons		 Oxidation
States
Group 3 of the Periodic Table
Scandium Sc 21 44.955912 1541 °C 2836 °C Solid 2.985 g/cm3 3d14s2 +3
(weakly basic oxide)
Yttrium Y 39 88.90585 1526 °C 3336 °C Solid 4.472 g/cm3 4d15s2 +3
(weakly basic oxide)
Group 4 of the Periodic Table
Titanium Ti 22 47.867 1668 °C 3287 °C Solid 4.506 g/cm3 3d24s2 +2, +3, +4
(amphoteric oxide)
Zirconium Zr 40 91.224 1855 °C 4409 °C Solid 6.52 g/cm3 4d25s2 +4
(amphoteric oxide)
Hafnium Hf 72 178.49 2233 °C 4603 °C Solid 13.31 g/cm3 5d26s2 +4
(amphoteric oxide)
Rutherfordium Radioactive Synthetic Element Rf 104 261 Unknown Unknown Solid Unknown ? 6d27s2 ? +4
Group 5 of the Periodic Table
Vanadium Toxic Element V 23 50.9415 1910 °C 3407 °C Solid 6.0 g/cm3 3d34s2 +2,+3,+4,+5
(amphoteric oxide)
Niobium Nb 41 92.906 2477 °C 4744 °C Solid 8.57 g/cm3 4d45s1 +3,+5
(mildly acidic oxide)
Tantalum Ta 73 180.94788 3017 °C 5458 °C Solid 16.69 g/cm3 5d36s2 +5 (mildly acidic oxide)
Dubnium Radioactive Synthetic Element Db 105 262 Unknown Unknown Solid Unknown ? 6d37s2 Unknown
Group 6 of the Periodic Table
Chromium Toxic Element Cr 24 51.9961 1907 °C 2671 °C Solid 7.15 g/cm3 3d54s1 +2,+3,+6
(strongly acidic oxide)
Molybdenum Mo 42 95.94 2623 °C 4639 °C Solid 10.28 g/cm3 4d55s1 +4, +6
(strongly acidic oxide)
Tungsten W 74 183.84 3422 °C 5555 °C Solid 19.25 g/cm3 5d46s2 +4, +6
(mildly acidic oxide)
Seaborgium Radioactive Synthetic Element Sg 106 266 Unknown Unknown Solid Unknown ? 6d47s2 Unknown
Group 7 of the Periodic Table
Manganese Toxic Element Mn 25 54.938045 1246 °C 2061 °C Solid 7.43 g/cm3 3d54s2 +2,+3,+4,+7
(strongly acidic oxide)
Technetium Radioactive Synthetic Element Tc 43 98 2157 °C 4265 °C Solid 11g/cm3 4d55s2 +4,+6,+7
(strongly acidic oxide)
Rhenium Re 75 186.207 3186 °C 5596 °C Solid 21.02 g/cm3 5d56s2 +4,+6,+7
(mildly acidic oxide)
Bohrium Radioactive Synthetic Element Bh 107 264 Unknown Unknown Solid Unknown ? 6d57s2 Unknown
Group 8 of the Periodic Table
Iron Fe 26 55.845 1538 °C 2861 °C Solid 7.86 g/cm3 3d64s2 +2,+3, +4, +6
(amphoteric oxide)
Ruthenium Ru 44 101.07 2334 °C 4150 °C Solid 12.45 g/cm3 4d75s1 +2, +3, +4, +6, +8
(mildly acidic oxide)
Osmium Os 76 190.23 3033 °C 5012 °C Solid 22.61 g/cm3 5d66s2 +3,+4
(mildly acidic oxide)
Hassium Radioactive Synthetic Element Hs 108 277 Unknown Unknown Solid Unknown ? 6d67s2 Unknown
Group 9 of the Periodic Table
Cobalt Toxic Element Co 27 58.933195 1495 °C 2927 °C Solid 8.90 g/cm3 3d74s2 +2,+3
(amphoteric oxide)
Rhodium Rh 45 102.905 1964 °C 3695 °C Solid 12.41 g/cm3 4d85s1 +2, +3, +4
(amphoteric oxide)
Iridium Ir 77 192.217 2446 °C 4428 °C Solid 22.65 g/cm3 5d76s2 +3,+4
(mildly basic oxide)
Meitnerium Radioactive Synthetic Element Mt 109 268 Unknown Unknown Solid Unknown ? 6d77s2 Unknown
Group 10 of the Periodic Table
Nickel Toxic Element Ni 28 58.6934 1455 °C 2913 °C Solid 8.908 g/cm3 3d84s2 +2,+3
(mildly basic oxide)
Palladium Pd 46 106.42 1554.9 °C 2963 °C Solid 12.023 g/cm3 4d10 +2, +3, +4
(mildly basic oxide)
Platinum Pt 78 195.084 1768.3 °C 3825 °C Solid 21.45 g/cm3 5d96s1 +2,+4
(mildly basic oxide)
Darmstadtium Radioactive Synthetic Element Ds 110 271 Unknown Unknown Solid Unknown ? 6d97s1 Unknown
Group 11 of the Periodic Table
Copper Toxic Element Cu 29 63.546 1084.62 °C 2562 °C Solid 8.96 g/cm3 3d104s1 +1,+2
(mildly basic oxide)
Silver Toxic Element Ag 47 107.8682 961.78 °C 2162 °C Solid 10.49 g/cm3 5s1 +1
(amphoteric oxide)
Gold Au 79 196.966569 1064.18 °C 2856 °C Solid 19.3 g/cm3 5d106s1 +1,+3
(amphoteric oxide)
Roentgenium Radioactive Synthetic Element Rg 111 272 Unknown Unknown Solid Unknown ? 6d107s1 Unknown
Group 12 of the Periodic Table
Zinc Toxic Element Zn 30 65.409 419.53 °C 907 °C Solid 7.14 g/cm3 4s2 +2
(amphoteric oxide)
Cadmium Toxic Element Cd 48 112.411 321.07 °C 767 °C Solid 8.65 g/cm3 5s2 +2
(mildly basic oxide)
Mercury Toxic Element Hg 80 200.59 -38.83 °C 356.73 °C Liquid 13.534 g/cm3 6s2 +1,+2
(mildly basic oxide)
Copernicium Radioactive Synthetic Element Cn 112 285 Unknown Unknown Solid Unknown ? 6d107s2 Unknown

Transition Metals: Located in Groups 3 to 12 of the periodic table. As with all metals, the transition elements are ductile, malleable, and conduct electricity and heat. These elements are very hard, with high melting points and boiling points. Transition elements may have multiple stable oxidation states which allow them to form many different ionic compounds.



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