what are man made elements on the periodic table?
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Answer and Explanation: The man-made elements on the periodic table are: Technetium, Promethium, Astatine, Francium, as well as all those with atomic numbers above that of...
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There are four main groups of elements in the periodic table: main group metals, non-metals, metalloids, and transition metals (See types of elements).
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Review of Elements, Compounds, and Mixtures. ... Most elements are metals, which are found on the left and toward the bottom of the periodic table. A handful of nonmetals are clustered in the upper right corner of the periodic table. The semimetals can be found along the dividing line between the metals and the nonmetals.
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Elements 1 through 92 (except for elements 43 and 61) occur naturally on Earth, although some are only present in extremely small quantities. The elements following uranium on the periodic table are only produced artificially, and are known as the transuranium or transuranic elements.
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The periodic table on the left separates elements into three groups: the metals (green in the table), nonmetals (orange), and metalloids (blue). Most elements are metals. They are usually shiny, very dense, and only melt at high temperatures. Their shape can be easily changed into thin wires or sheets without breaking.
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An element (also called a "chemical element") is a substance made up entirely of atoms having the same atomic number; that is, all of the atoms have the same number of protons. Hydrogen, helium, oxygen, nitrogen, carbon, gold, silver, lead, and uranium are well-known examples of elements.
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The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. ... The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right.
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Did you know that the periodic table of the elements is universal? First proposed by Dmitri Mendeleev in 1869, the periodic table of the elements has been deemed not only valid on Earth, but throughout the universe. ... The combination of these particles gives rise to elements.
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An element is a substance completely made up of one atom. ... However, the atom itself is not the smallest known particle, but instead each atom is made up of three individual parts: electrons, protons and neutrons. Furthermore, protons and neutrons themselves are made up of even smaller parts called quarks.
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Metal – This is a chemical element made up of various opaque, fusible, ductile and lustrous substances, with some of the most commonly used metals being titanium, copper and nickel. Steel – By contrast the metal, this is an alloy of iron that contains various amount of carbon content.
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The trace elements are also called minor elements. An element is considered a trace element when its requirement per day is below 100 mg. The deficiency of these elements is rare but may prove fatal. Examples include copper, iron, zinc, chromium, cobalt, iodine, molybdenum, and selenium.
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The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.
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The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. In the modern periodic table, each element is represented by its chemical symbol.
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The periodic table. Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic configurations model how electrons are arranged in atoms.
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The periodic table of elements only includes individual chemical elements. Water is not found on the periodic table because it does not consist of a single element. ... The smallest particle of water is a water molecule, which is made of two atoms of hydrogen bonded to one atom of oxygen.
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An inner transition metal (ITM) of chemical elements on the periodic table. They are normally shown in two rows below all the other elements. They include elements 57-71, or lanthanides, and 89-103, or actinides. ... ITMs have three incomplete outermost electron shells and are all metals.
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['Technetium (Atomic Number 43) ... ', 'Promethium (Atomic Number 61) ... ', 'Neptunium & Plutonium (Atomic Numbers 93 and 94) ... ', 'Fermium (Atomic Number 100) ... ', 'Americium (Atomic Number 95) ... ', 'Californium (Atomic Number 98) ... ', 'Seaborgium (Atomic Number 106)']