Q:

What are two or more elements that are chemically combined?

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Quick Answer

A molecule is made up of two or more atoms of the same element or compound, or different elements or compounds, that are chemically bound together. A molecule is a quantity of a substance that can be measured by a chosen unit. Molecules are extremely small particles.

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Full Answer

Molecules are made up of elements. An element consists of one kind of atom only. An element cannot be broken down into a simpler matter by a chemical or a physical mean. Elements exist as either molecules or atoms. An example of an element molecule is nitrogen. An example of an element atom is argon.

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Related Questions

  • Q:

    What is the difference between a compound and a molecule?

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    A molecule consists of at least two atoms of the same element, while a compound includes at least two elements. An example of a molecule would be molecular hydrogen, which has two atoms of hydrogen and is represented as H2. An example of a compound would be water (H2O), which has two atoms of hydrogen and one atom of oxygen.

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  • Q:

    What is a polyatomic element?

    A:

    A polyatomic element is a chemical element that naturally exists as a compound molecule containing more than two atoms of the same element joined together by covalent bonds. There are only three polyatomic elements found on the periodic table: selenium, phosphorous and sulfur.

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  • Q:

    What formula represents an ionic compound?

    A:

    An ionic compound is represented by a formula that lists the symbol for each element in the compound, with subscript numbers indicating the number of each atom present in a single molecule. For example, the ionic formula for combing the Ca^+2 ion with a Cl^-1 ion is CaCl2.

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  • Q:

    Why is the octet rule important in the creation of chemical compounds?

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    The octet rule is important in the creation of chemical compounds because it reflects the basis of what causes the atoms of specific elements to react with each other to form new molecules. The rule describes how chemical bonds are formed and why some elements are highly reactive and others are not. As the name implies, the octet rule is associated with the number "8," which represents the number of electrons present in the outermost electron orbit of an atom in its most stable state.

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