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Ch 19 Int Sc

Molecules and Compound

QuestionAnswer
What is Avogadro number? The number of atoms in the atomic mass of an element, or the number of molecules in the formula mass of a compound when these masses are expressed in grams.
What is chemical bond? An attraction between two or more different atoms that bonds them together.
What is chemical formula? A representation of a compound that includes the symbols and numbers of atoms in the compound.
What is covalent bond? A type of chemical bond formed when two atoms share electrons.
What is diatomic molecule? A molecule that has only two atoms of the same element.
What is energy level? A region around the nucleus of an atom where electrons are most likely to be found.
What is formula mass? Determined by adding up the atomic mass units of all the atoms in the compound; a way to compare the masses of molecules of different compounds.
What is ionic bond? A type of chemical bond in which electrons are transferred between atoms, converting the atoms in ions.
What is ion? An atom, which by the gain or loss of one or more electrons, has an electrical charge.
What is monoatomic ion? Ions that contain only one type of atom.
What is octet? An atom's eight valence electrons.
What is polyatomic ion? Ion that contains more than one type of atom.
What is polymer? A large molecule that is composed of repeating smaller molecules called subunits or monomers.
What is react? Describes how atoms interact when forming a chemical bond with another atom.
What is subscript? A number in a chemical formula that show the number of a type of atom.
What is valcence electron? The electrons in an atom that are involved in the formation of chemical bonds.
What is a binary compound? A covalent compound that consists of only two types of elements.
What is oxidation number? Indicates how many electrons are lost, or gained, or shared when bonding occurs.
Created by: jazznsoul64
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