what elements on the periodic table are compounds?
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Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur. Some of the most basic of elements, but some of the most important. Together they can form countless combinations of organic compounds. And in just the right combinations, anything can happen.
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Molecules are made up of two or more elements. Compounds are made up of two or more DIFFERENT elements. In determining if you have molecules or compounds remember that a compound is also a molecule.
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Elements in the same group of the periodic table have similar chemical properties. Elements can be classified as metals, metalloids, and nonmetals, or as a main-group elements, transition metals, and inner transition metals. Groups are numbered 1–18 from left to right.
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An atom is a particle of matter that characterizes a chemical element. It is the smallest part of ordinary matter. ... A compound is a substance that is made up of two or more different elements that are chemically joined, such as H2O,CO,NaCl . Note: All compounds are molecules, but not all molecules are compounds.
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Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions. There are nearly 118 elements (at present) of which nearly 94 occur naturally on Earth.
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Of the following elements, which have been shown to form compounds? helium neon argon krypton xenon xenon and argon xenon only xenon, krypton, and argon xenon and krypton None of the above can form compounds.
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Compounds, and mixtures Elements are key ingredients in compounds and mixtures. The similarities between compounds and mixtures are that they are both made up of two or more elements and that they could both be separated and then mixed with different elements to make a new mixture and compound.
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A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. ... Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
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There are nine basic groups of elements shown in the periodic table. They are the alkali metals, alkaline earth metals, transition metals, other metals, metalloids, non-metals, halogens, noble gases and rare earth 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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Molecular Compounds Provide the classification (i.e. atomic element, molecular element, molecular compound, or ionic compound) of each substance. Fe, iron is an element that is represented with no subscript, so it is an atomic element. PCl 3 is made up of two nonmetals, so it is a molecular compound.
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['Group (family): A vertical column in the periodic table.', 'Alkali metals: Group 1A of the periodic table.', 'Alkaline earth metals: Group 2A of the periodic table.', 'Halogens: Group 7A of the periodic table.', 'Noble gases: Group 8A of the periodic table.']
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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.
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There are two basic types of compounds. They are distinguished by by the manner in which the atoms bind to one another in the compound. These two types are called "molecular" compounds and "salts" (or equivalently "ionic" compounds):
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A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of.
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Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances. Compounds can be of three types, which are: covalent compounds, metallic compounds and ionic compounds.
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Compounds can be divided into molecular compounds (molecules), ionic compounds (salts) and metallic compounds (metals). Molecular compounds form as a result of covalent bonding where electrons are shared between non-metal atoms.