Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Chemically, indium is similar to gallium and thallium. Caesium has physical and chemical properties similar to those of rubidium and potassium. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. All rights reserved. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Holmium is a relatively soft and malleable silvery-white metal. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Maybe add your school logo, work team or anything else to maker your paper look cool? The first two columns on the left side of the periodic table are where the s subshells are being occupied. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. It is a noble metal and a member of the platinum group. Neptunium metal is silvery and tarnishes when exposed to air. WebElements: THE periodic table on the WWW [] Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. The chemical symbol for Gadolinium is Gd. The chemical symbol for Lithium is Li. Possible oxidation states are +3. Electronic configuration: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 5p 6 4f 5 5d 0 6s 2 >> Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. (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. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Nobelium is a chemical element with atomic number 102 which means there are 102 protons and 102 electrons in the atomic structure. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. The chemical symbol for Gold is Au. The chemical symbol for Argon is Ar. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. The chemical symbol for Lanthanum is La. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. The chemical symbol for Neptunium is Np. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. Most elements have more than one possible oxidation state. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure. 2) You may not distribute or commercially exploit the content, especially on another website. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Bismuth is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge.

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