Palladium (Pd)

Palladium is a chemical element with the atomic number 46 in the periodic table. It’s the most abundant platinum metal and occurs in Earth’s crust at an abundance of 0.015 parts per million. Being a member of the platinum group metals (PGM) of the periodic table, palladium has three valence electrons and adopts the oxidation … Read more

Lawrencium (Lr)

Lawrencium is a synthetic chemical element with atomic number 103 in the periodic table. This man-made radioactive actinide metal has not been detected in Earth’s crust yet. A member of the actinide series in the periodic table, lawrencium has three valence electrons on the outer shell that help element 103 participate in the formation of … Read more

Bismuth (Bi)

Bismuth is a chemical element with the atomic number 86 in the periodic table. With 0.00002% of abundance, it’s the 71st most abundant chemical element in Earth’s crust.  Element 86 is a pentavalent chemical element that participates in many compounds, as well as a member of the post-transition metals family of elements. The chemical properties … Read more

Lead (Pb)

Lead is a chemical element with atomic number 82 in the periodic table. It’s available in Earth’s crust at 14 ppm and is typically found in the form of several different lead ores. This lustrous heavy metal has four valence electrons and the heaviest stable atom among all other elements of Mendeleev’s system.  Element 82 … Read more

Thallium (Tl)

Thallium is a chemical element with the atomic number 81 in the periodic table. It’s a moderately abundant metal, found in trace amounts in Earth’s crust. In fact, thallium is 10 times more abundant than silver. Being a member of the aluminum family of periodic table elements, this post-transition metal has three valence electrons and … Read more

Mercury (Hg)

Mercury is a chemical element with atomic number 80 in the periodic table. Accounting for only 0.08 parts per million (ppm) of the Earth’s crust, element number 80 is a very rare occurrence in the Earth’s crust. This post-transition metal is the only metal element that occurs in liquid form. It has two valence electrons … Read more

Tin (Sn)

Tin is a chemical element with the atomic number 50 in the periodic table. It’s the 49th most plentiful element found in Earth’s crust. Being a member of the post-transition metal family of periodic, the element 50 has four valence electrons and three allotropes.  While the pure, elemental form of tin is classified as a … Read more

Indium (In)

Indium is a chemical element with atomic number 49 in the periodic table. It occurs in quantities of around 0.1 parts per million (ppm) in Earth’s crust, and it’s a member of the aluminum family with amphoteric properties. The outer shell electrons of indium adopt the oxidation states +1, +2, or +3 when forming compounds … Read more

Cadmium (Cd)

Cadmium (Cd) is a chemical element with an atomic number of 48 in the periodic table of elements. Found in Earth’s crust at about 0.5 ppm (parts per million), it belongs to the group of rare metals. As a member of both the transition and toxic metals family of periodic table elements, this naturally occurring … Read more

Gallium Facts

Gallium (Ga) is a chemical element with an atomic number of 31 in the periodic table of elements. It mainly occurs as a part of the chemical compounds found in Earth’s crust, in a quantity of 0.0005%.  This chemical substance is a member of the boron family (group 13), which includes the semi-metal boron (B) … Read more