Category: Periodic Table

Gallium Symbol Ga Atomic Number 31 Atomic Mass 69.72 g.mol -1 Discovered by Paul-Émile Lecoq de Boisbaudran Chemical Properties Of Gallium Group 13 Melting point 29.8 °C Period 4 Boiling point 2204 °C Block p Density (g cm−3) 5.91 Atomic number 31 Relative atomic mass 69.723 State at 20°C Solid Key isotopes 69Ga Electron configuration… Continue reading Gallium

Zinc Symbol Zn Atomic Number 30 Atomic Mass 65.37 g.mol−1 Discovered by Andreas Marggraf Chemical Properties of Zinc Group 12 Melting point 419.527°C, 787.149°F, 692.677 K Period 4 Boiling point 907°C, 1665°F, 1180 K Block d Density (g cm−3) 7.134 Atomic number 30 Relative atomic mass 65.38   State at 20°C Solid Key isotopes 64Zn… Continue reading Zinc

Copper (Cu) Copper Symbol Cu Atomic Number of Copper 29 Atomic Mass of Copper 63.546 g.cm-3 at 20°C  Discovered by – Chemical Properties Of Copper Group 11 Melting point 1084.62°C, 1984.32°F, 1357.77 K Period 4 Boiling point 2560°C, 4640°F, 2833 K Block d Density (g cm−3) 8.96 Atomic number 29 Relative atomic mass 63.546  State at… Continue reading Copper (Uses & Properties)

Nickel Symbol Ni Atomic Number 28 Atomic Mass 58.693 Discovered by Nickel was discovered by Axel Fredrik Cronstedt Chemical Properties Of Nickel Group 10 Melting point 1455°C, 2651°F, 1728 K Period 4 Boiling point 2913°C, 5275°F, 3186 K Block d Density (g cm−3) 8.90 Atomic number 28 Relative atomic mass 58.693 State at 20°C Solid… Continue reading Nickel (Ni)

Cobalt Symbol Co Atomic Number 27 Atomic Mass 58.933 Discovered by Cobalt was discovered by Georg Brandt Chemical Properties Of Cobalt Group 9 Melting point 1495°C, 2723°F, 1768 K Period 4 Boiling point 2927°C, 5301°F, 3200 K Block d Density (g cm−3) 8.86 Atomic number 27 Relative atomic mass 58.933 State at 20°C Solid Key… Continue reading Cobalt

Manganese Manganese Symbol Mn Manganese Atomic Number 25 Manganese Atomic Mass 54.9380 g.mol-1 Discovered by Johan Gottlieb Gahn What is Manganese? Manganese, a chemical element that has a symbol Mn and atomic number 25. This element is not found as a free element in nature but available in combination with iron and other minerals. It is a… Continue reading Manganese (Mn)

Chromium Symbol Cr Atomic Number 24 Atomic Mass 51.996 g.mol -1 Discovered by Vaughlin in 1797 The Electronic configuration of chromium is [Ar]3d5 4s1. Chemical Properties Of Chromium Group 6 Melting point 1907 °C Period 4 Boiling point 2672 °C Block d Density (g cm−3) 7.19 g.cm-3 at 20°C Atomic number 24 Relative atomic mass 51.996 State at… Continue reading Chromium

Vanadium (V) Symbol V Atomic Number 23 Atomic Mass 50.9414 g.mol -1 Discovered by Nils Sefstrom in 1830 Chemical Properties Of Vanadium Group 5 Melting point 1910°C, 3470°F, 2183 K Period 4 Boiling point 3407°C, 6165°F, 3680 K Block d Density (g cm−3) 6.0 Atomic number 23 Relative atomic mass 50.942 State at 20°C Solid… Continue reading Vanadium (V)

Titanium Symbol Ti Atomic Number 22 Atomic Mass 47.867 Discovered by Titanium was discovered by William Gregor Chemical Properties Of Titanium Group 4 Melting point 1941 K  (1668 °C, 3034 °F) Period 4 Boiling point 3560 K (3287 °C, 5949 °F) Block d Density (g cm−3) 4.506 Atomic number 22 Relative atomic mass 47.867 State at 20°C Solid Key isotopes 48Ti… Continue reading Titanium

Scandium (Sc) Symbol Sc Atomic Number 21 Atomic Mass 44.955 908(5) Discovered by Lars Frederik Nilson in 1879 Chemical Properties of Scandium Group 3 Melting point 1541°C, 2806°F, 1814 K Period 4 Boiling point 2836°C, 5137°F, 3109 K Block d Density (g cm−3) 2.99 Atomic number 21 Relative atomic mass 44.956 State at 20°C Solid… Continue reading Scandium