A type of formula that shows how many atoms of each element a substance contains.
What is a molecular formula (ok chemical formula)?
100
The total number of electrons in the s and p subshells of the highest energy level of an element, this is the maximum number of valence electrons any element can have.
What is 8?
100
The electron dot structure of aluminum.
What is Al surrounded by three single dots?
100
The molecular geometry of a diatomic hydrogen molecule.
What is linear?
200
As opposed to an ionic bond, this type of bond involves the sharing of electrons.
What is a covalent bond?
200
The number of atoms in a molecule of ethanol, or C2H5OH.
What is 9?
200
A bond formed by sharing two pairs of electrons.
What is a double bond?
200
The electron dot structure of the bromine molecule, Br2.
What is 2 Br's sharing one pair and each with three unshared pairs.
200
The molecular geometry of water.
What is bent?
300
The number of metallic atoms in a typical molecular compound.
What is zero?
300
Another name for a molecule that contains two atoms.
What is a diatomic molecule?
300
Another name for a pair of valence electrons that is not shared between atoms.
What is an unshared pair? (or a lone pair)
300
The Lewis structure of the nitrogen molecule, N2.
What is N triple-bonded to another N, each with a lone pair.
300
The molecular geometry of ammonia, NH3.
What is trigonal pyramidal?
400
The total number of atoms in a molecule of water.
What is 3? (2 H and 1 O)
400
An element that is diatomic under normal conditions.
What is any of oxygen, nitrogen, hydrogen, fluorine, chlorine, bromine, or iodine.
400
The maximum number of double bonds a carbon atom can have.
What is 2?
400
The electron dot structure of carbon dioxide.
What is C double-bonded to each of two O's, each O with another two lone pairs?
400
The Lewis structure and molecular geometry of hydrocyanic acid, HCN.
H-C-N, with the C triply-bonded to N and a single lone pair on the N, and for which the molecular geometry is linear?
500
A common molecular compound that is a solid at room temperature but that has a lower melting point than sodium chloride.
What is sugar? (e.g. sucrose, or any other sugar)
500
Whereas the representative unit of a molecular compound is a molecule, the representative unit of an ionic compound is this.
What is a formula unit?
500
The reason that nitrogen can form three single covalent bonds, one single and one double, or one triple is because it has three half-filled of these.
What are orbitals (specifically 2p orbitals)?
500
The Lewis structure of the carbonate ion, CO32-
What is C in the middle of three O's, bonded with two singles and one double, where the singly-bonded O's each have three unshared pairs and the doubly-bonded O has two unshared pairs.
500
The Lewis structure of HOCN (where the atoms are bonded as listed in the formula) and molecular geometry at both the O and the C.
What is H-O-C-N, where there are two lone pairs on the O, a triple bond C-N, and a lone pair on the N, where the molecular geometry at the O is tetrahedral and the molecular geometry at the C is linear.