what is the relationship between atoms compounds and elements?
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Molecules are groups of two or more atoms, but there is a special sub-group of molecules, too. These are compounds, and a compound is a group of two or more different atoms chemically bonded together. The key here is that compounds are made of at least two different elements.
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Elements, mixtures and compounds Common examples include carbon, sulfur, oxygen, iron, copper, aluminium. Elements are represented by symbols. Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.
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A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds. All compounds are molecules.
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A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. ... There are two main types of chemical bonds that hold atoms together: covalent and ionic/electrovalent bonds. Atoms that share electrons in a chemical bond have covalent bonds.
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In a compound the (atoms/molecules) are (chemically physically) combined so that the elements that make up the compound (retain/lose) their identities and (do do not) take on a new set of properties. ... The smallest identifiable unit of a compound is a(n) molecule which is made up of atoms which are chemically bonded.
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A compound is a substance made up of a definite proportion of two or more elements. A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts.
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Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. Compounds can be decomposed into simpler constituents using chemical reactions.
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Ostensibly, compounds contain more than one type of material. Yet both compounds and elements are considered pure substances. Pure compounds are created when elements combine permanently, forming one substance. ... In general, a mixture can be separated into its original components, while a pure compound cannot.
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Atoms of the same element are the same; atoms of different elements are different. Atoms combine in whole-number ratios to form compounds.
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Explain the relationship between atoms, elements, minerals and rocks: Atoms of elements such as oxygen and silicon will form minerals. Minerals are homogeneous and form from only one compound, rocks form from combinations of minerals.
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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. They contain only one type of molecule.
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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. ... Elements that compose the compound are chemically combined. Elements contain only one type of atom.
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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.
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['an element contains just one type of atom.', 'a compound contains two or more types of atom joined together.', 'a mixture contains two or more different substances that are not joined together.', 'the different substances in a mixture can be elements or compounds.']
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A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. ... A compound is a substance made from two or more different elements that have been chemically joined.
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Elements, which are composed of a single type of atom, contain different numbers of protons. Molecules are formed when two or more atoms bond together. If molecules contain atoms of different elements, that substance is known as a compound.