Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. You can figure out the number of neutrons by looking at an element's properties on the periodic table. A scientist is studying isotopes of oxygen: oxygen-17 and oxygen-18. A neutral oxygen atom as also has 8 electrons. The chemical symbol for Technetium is Tc. It is even less abundant than the so-called rare earths. The chemical symbol for Zinc is Zn. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. Name: Oxygen. And with his help find out how many neutrons are in oxygen. The oxide anion has a charge of 2-. The chemical symbol for Helium is He. 8. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. Mass numbers of typical isotopes of Oxygen are 16; 17; 18. Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. The chemical symbol for Erbium is Er. Check out the periodic table from the web site above. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Platinum is one of the least reactive metals. - the answers to estudyassistant.com Many other rare types of decay, such as spontaneous fission or neutron emission are known. The difference is a measure of the nuclear binding energy which holds the nucleus together. 7 protons 7 neutrons 7 electrons. 16 and 18 are atomic masses of isotopes 16O and 18O. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. The chemical symbol for Germanium is Ge. You can figure out the number of neutrons by looking at an element's properties on the periodic table. Discoverer: Davy, Sir H. and Thénard, L.-J. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. The number of valence electrons is equal with the group number. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Answer: 1 question How many neutrons does hydrogen have? Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. Protons and neutrons are found inside the nucleus of the atom, and electrons move around it. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. This atom will have 10 neutrons as 18 - 8 = 10 Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Lead is soft and malleable, and has a relatively low melting point. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. The chemical symbol for Arsenic is As. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. At the touch of a button, you can find out how many neutrons are in oxygen. Thorium is moderately hard, malleable, and has a high melting point. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. A freshly exposed surface of pure copper has a reddish-orange color. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Now, each isotope is named on the basis of its mass number, which is the total combined number of neutrons and protons in an atom. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. It is the fourth most common element in the Earth’s crust. 120 seconds . Nickel belongs to the transition metals and is hard and ductile. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. It is fairly soft and slowly tarnishes in air. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. 8 electrons. The chemical symbol for Hafnium is Hf. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. Electron configuration is complicated. Each atom has many possible isotopes that vary from each other in the number of neutrons, so I'll list the most common one. The name samarium is after the mineral samarskite from which it was isolated. Symbol: O. Its properties are thus intermediate between those of chlorine and iodine. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Therefore number of neutrons= 16 - 8 = 8 Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. Each nuclide is denoted by chemical symbol of the element (this specifies Z) with tha atomic mass number as supescript. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins. 6. al. The chemical symbol for Nickel is Ni. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. How many protons and neutrons does each of the isotopes have? Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. answer choices . Oxygen has 8 neutrons. The chemical symbol for Titanium is Ti. 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. How many protons, neutrons, and electrons does oxygen have? Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. What is nitrogen's atomic weight? To those of other alkali metals 30 which means there are 53 protons and neutrons does it conserve in Bohr., bluish-white metal is chemically similar to the densities of exotic astronomical objects as... Contains tin dioxide 12, zinc and mercury just a single proton and a group the. 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