Chapter 5 compounds and molecules Tadym Mason Flashcards
What is chemical structure?
When atoms are arranged in a substance.
What is a chemical bond?
When atoms or ions are held together by an attractive force.
What is a bond length?
The average distance that takes place between the nuclei and two atoms bonded together.
What is a bond angle?
The angle that is formed by two bonds attached to the same atom.
What is a hydrogen bond?
When two hydrogen atoms are very close to one another and their electron clouds overlap, creating a bond between the two.
What is an ionic bond?
A bond that is created when two oppositely charged ions are attracted to one another.
What is a metallic bond?
A bond created when two positively charged metal ions and the electrons around them are attracted to one another.
What is a covalent bond?
A bond created when atoms with one or more pairs of electrons are shared.
What is polyatomic ion?
An ion that is made up of two or more atoms.
What is a formula unit?
One balanced proportion of ions in a compound.
What are nonpolar covalent bonds?
A bond between atoms whose electrons are shared equally.
What is a polar covalent bond?
A bond formed between atoms with an unequal sharing of electrons.
What is empirical formula?
The make up of a compound in terms of its relative number and kinds of atoms in the simplest ratio.
What is molecular formula?
A chemical formula that doesn’t show the arrangement of atoms, but does show the number and kinds of atoms in a molecule.
What is an organic compound?
A compound that is covalently bonded that contains carbon and excludes carbonates and oxides.
