Indium is a soft, malleable metal with a brilliant lustre. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure.

Group

Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. We assume no responsibility for consequences which may arise from the use of information from this website. [86], Carbon–hydrogen bond activation (C–H activation) is an area of research on reactions that cleave carbon–hydrogen bonds, which were traditionally regarded as unreactive. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.

Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth.

Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. It's a name that belongs to a superhero of the elements.

We use cookies to ensure that we give you the best experience on our website. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. The chemical symbol for Zirconium is Zr. The chemical symbol for Gold is Au.

For other uses, see. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. Pornographic, defamatory, libellous, scandalous, fraudulent, immoral, infringing or otherwise unlawful use of the Images is, of course, prohibited.

The chemical symbol for Neptunium is Np. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. The atomic number of each element increases by one, reading from left to right.

Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust.
(1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich.

Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Berkelium is a member of the actinide and transuranium element series. Where more than one isotope exists, the value given is the abundance weighted average. The images may not be posted on any website, shared in any disc library, image storage mechanism, network system or similar arrangement.

In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Hassium is a chemical element with symbol Hs and atomic number 108. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure.

They required burning more than 300 liters of pure O2 and H2 gas for each kilogram of iridium. The chemical symbol for Caesium is Cs. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. The density of Hassium results from its high atomic weight and from the significant decrease in ionic radii of the elements in the lanthanide series, known as lanthanide and actinide contraction. Einsteinium is the seventh transuranic element, and an actinide.

Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. © 2019 periodic-table.org / see also Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure.

Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. [39] He named iridium after Iris (Ἶρις), the Greek winged goddess of the rainbow and the messenger of the Olympian gods, because many of the salts he obtained were strongly colored.

Mercury is commonly known as quicksilver and was formerly named hydrargyrum.

The higher the value, the larger risk there is to supply.


In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. Some elements exist in several different structural forms, called allotropes. [71], Corrosion and heat resistance makes iridium an important alloying agent.

These days it is more likely to turn up in the central electrode of spark plugs, where its resistance to corrosion and hardness are equally valuable.

Classification:Transition Metal. Technetium is the lightest element whose isotopes are all radioactive; none are stable. [8] In contrast to its low abundance in crustal rock, iridium is relatively common in meteorites, with concentrations of 0.5 ppm or more. Element Iridium (Ir), Group 9, Atomic Number 77, d-block, Mass 192.217.

thermal ionization mass spectrometry. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure.

Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.