Fraiser Moorhouse Sodium is a chemical element with atomic number 11 in the periodic table. It’s the fourth most abundant element and comprises around 2.6% of Earth’s crust. Being a member of the alkali metals family of the periodic table, this monoisotopic element has one valence electron that makes it one of the most reactive elements in … Read more
Beryllium is a chemical element with the symbol Be and atomic number 4 in the periodic table of elements. It occurs in a quantity from 2 to 6 parts per million (ppm) in the Earth’s crust, i.e. 2.8 milligrams per kilogram of the elemental form of beryllium. This lightest member of the alkaline earth metals … Read more
Lithium is a chemical element with atomic number 3 in the periodic table. This chemical element is a mixture of lithium-6 and lithium-7, both stable isotopes. Lithium is the first metal element classified according to Mendeleev’s system of elements and it occurs in an abundance of 0.002% of Earth’s crust. As a member of the … Read more
Hydrogen is a chemical element with an atomic number of 1 in the periodic table. Occurring as a part of the H2O molecule, it’s the most plentiful element that occurs in the Universe. With 0.15 % concentration, it’s also the 10th most abundant chemical element in Earth’s crust. As a member of the hydrogen family … Read more