Physical Properties of Sodium Chemical Properties of Sodium Group 1 Melting point 97.794°C, 208.029°F, 370.944 K Period 3 Boiling point 882.940°C, 1621.292°F, 1156.090 K Block s Density (g cm−3) 0.97 Atomic number 11 Relative atomic mass 22.990 State at…
Chemical Properties of Neon Group 18 Melting point −248.59°C, −415.46°F, 24.56 K Period 2 Boiling point −246.046°C, −410.883°F, 27.104 K Block p Density (g cm−3) 0.000825 Atomic number 10 Relative atomic mass 20.180 State at 20°C Gas Key isotopes 20Ne…
Chemical Properties of Fluorine Group 17 Melting point −219.67°C, −363.41°F, 53.48 K Period 2 Boiling point −188.11°C, −306.6°F, 85.04 K Block p Density (g cm−3) 0.001553 Atomic number 9 Relative atomic mass 18.998 State at 20°C Gas Key isotopes…
Chemical Properties of Oxygen Group 16 Melting point -219 °c Period 2 Boiling point -183 °c Block p Density (g cm−3) 0.001308 Atomic number 8 Relative atomic mass 15.999 State at 20°C Gas Key isotopes 16O Electron configuration [He]2s2 2p4 CAS…
Chemical Properties of Nitrogen Group 15 Melting point −210.0°C, −346.0°F, 63.2 K Period 2 Boiling point −195.795°C, −320.431°F, 77.355 K Block p Density (g cm−3) 0.001145 Atomic number 7 Relative atomic mass 14.007 State at 20°C Gas Key…
Chemical Properties of Carbon Group 14 Melting point Sublimes at 3825°C, 6917°F, 4098 K Period 2 Boiling point Sublimes at 3825°C, 6917°F, 4098 K Block p Density (g cm−3) 3.513 (diamond); 2.2 (graphite) Atomic number 6 Relative atomic mass 12.011…
Chemical Properties of Boron Group 13 (Boron Group) Melting point 2349K Period 2 Boiling point 4200K Block p-block Density (g cm−3) 2.08 (when liquid) Atomic number 5 Electron configuration [He]2s22p1 State at 20°C Solid What is Boron? Uses of Boron…
Chemical Data of Beryllium Group 2 Melting point 1287°C, 2349°F, 1560 K Period 2 Boiling point 2468°C, 4474°F, 2741 K Block s Density (g cm−3) 1.85 Atomic number 4 Relative atomic mass 9.012 State at 20°C Solid Key isotopes 9Be Electron configuration [He]…
Chemical Properties Group 1 Melting point 180.5 °C Period 2 Boiling point 2061 °C Block s Density (g cm−3) 0.534 Atomic number 3 Relative atomic mass 6.94 State at 20°C Solid Key isotopes 7Li Electron configuration [He] 2s1 CAS number…
What is Helium? Helium, the lightest of the noble gases, had actually been detected and helium is the only element in the periodic table that was discovered by an astronomer. Isotopes Helium has two known stable isotopes – 3He and 4He. The abundance…