Chemical Elements In Group 7

25MnManganese54.938Period: 4Melting Point: 1245Boling Point: 1962 Ionization Energy: 7,434Electrone Gativity: 1,83Covalenz Radius: 117Discovery Year: 1774Earth Crust: 0,09Human Body: tracesInventor: Ramsay, Sir William & Strutt, John
28132
43TcTechnetium(98)Period: 5Melting Point: 2200Boling Point: 4877 Ionization Energy: 7,28Electrone Gativity: 2,16Covalenz Radius: 127Discovery Year: 1937Inventor: Ramsay, Sir William & Strutt, John
2818132
75ReRhenium186.21Period: 6Melting Point: 3180Boling Point: 5627 Ionization Energy: 7,8335Electrone Gativity: 1,5Covalenz Radius: 128Discovery Year: 1925Inventor: Ramsay, Sir William & Strutt, John
281832132
107BhBohrium(270)Period: 7Discovery Year: 1981Inventor: Ramsay, Sir William & Strutt, John
28183232132

Heat change





Note

Melting point
Boiling point