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Chapter 5 Terms

10th Grade PS - The Structure of Matter

TermDefinition
chemical bond the attraction or force that holds atoms together
chemical structure the arrangement of atoms in a substance
structural formula a way to represent the structure of a compound by using chemical symbols to represent atoms, and lines (sticks) to show bonds between atoms and how the atoms are arranged
space-filling model a way to represent the structure of a compound by showing how much space (volume) is taken up by each atom
ionic bond a bond formed by the attraction between oppositely charged ions
metallic bond a bond formed by the attraction between positively charged metal ions and the electrons around them
covalent bond a bond formed when atoms share one or more pairs of electrons
valence electrons electrons shared when atoms form covalent bonds
nonpolar covalent bond a bond in which atoms share a pair of electrons equally
polar covalent bond a bond in which atoms share a pair of electrons unequally
polyatomic ion an single ion made of two or more atoms
molecular formula shows the number and kinds of atoms in a molecule, but not the arrangement of atoms
What is a monatomic ion? a single ion made of just one charged atom, such as Na+
What is a cation? a name for any positively charged ion
What is an anion? a name for any negatively charged ion
What is a diatomic molecule? a molecule made up of only two identical atoms (non-metal) bound to one another by covalent bonds
Created by: gstubblefield