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Aluminium Symbol of aluminium Al Atomic Number of aluminium 13 Atomic Mass of aluminium 26.98 amu Discovered by Hans Christian Oersted in 1825 The Atomic Mass of aluminium is 26.98 amu.

Magnesium Symbol Mg Atomic Number 12 Atomic Mass 24.305 Discovered by Magnesium was discovered by Joseph Black Chemical Properties of Magnesium Group 2 Melting point 650°C, 1202°F, 923 K Period 3 Boiling point 1090°C, 1994°F, 1363 K Block s Density (g cm−3) 1.74 Atomic number 12 Relative atomic mass 24.305 State at 20°C Gas Key…

Sodium Symbol Na Atomic Number 11 Atomic Mass 22.990 Discovered by Sodium was discovered by Humphry Davy Physical Properties of Sodium Sodium has a strong metallic lustre and in colour is very analogous to silver. It is soft at common temperatures that it may be formed into leaves by the pressure of the fingers. Sodium…

Neon Symbol Ne Atomic Number 10 Atomic Mass 20.180 Discovered by Neon was discovered by Sir William Ramsay and Morris Travers What is Neon? Neon is reddish-orange coloured in neon lamps and vacuum discharge tubes and a second-lightest noble gas. It is less expensive refrigerant than helium in many applications. It’s refrigerating capacity is 40 times…

Fluorine Symbol F Atomic Number 9 Atomic Mass 18.998403 g.mol-1 Discovered by Henri Moissan 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 19F…

Oxygen Symbol O Atomic Number 8 Atomic Mass 15.999 g.mol-1 Discovered by Joseph Priestly in 1774 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…

Nitrogen Symbol N Atomic Number 7 Atomic Mass 14.007 Discovered by Daniel Rutherford in 1772 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…

Carbon Symbol C Atomic Number 6 Atomic Mass 12.011 Discovered Lavoisier proposed carbon in 1789 The Atomic number of Carbon is 6. 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)…

Boron Symbol B Atomic Number 5 Atomic Mass 10.821 amu Discovered by Joseph Louis Gay-Lussac in 1808 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? Boron…

Beryllium Symbol Be Atomic Number 4 Atomic Mass 9.01218 g.mol-1 Discovered by Nicholas Louis Vauquelin What is Beryllium? Beryllium is an element with an atomic number of 4 in the periodic table. It is a bivalent and highly toxic element. The element has one of the highest melting points among the light metals. Beryllium exists in…