Vocabulary
Intermolecular forces
Intermolecular forces are the forces of attraction or repulsion that act between molecules.
What type of intermolecular force is present between nonpolar molecules?
London dispersion forces (or van der Waals forces).
What type of bond is between two or more metals.
Metallic Bonds
Who created the periodic table?
Dmitri Mendeleev
This is called the "bad" ozone.
ground-level ozone
Intramolecular forces
Intramolecular forces are the forces that hold atoms together within a molecule or compound.
What is the strongest type of intermolecular force present in water?
Hydrogen Bonding
What type of bond is between a metal and a nonmetal?
Ionic Bond.
Where is the atomic mass/weight of an atom found on the periodic table?
At the bottom of the panel.
What is the component of the outermost shell of the atom?
valence electrons
Van der Waals forces
Van der Waals forces refer to a group of weak intermolecular forces that exist between molecules or atoms. These forces are much weaker than covalent or ionic bonds, but they still play a significant role in the behavior and properties of substances
Which intermolecular force is present between polar molecules but not involving hydrogen?
Dipole-dipole interactions.
A molecule with an uneven distribution of electron density, resulting in a positive and a negative end.
Polar molecule
This is the largest group in the periodic table.
transition metals
What are the three main types of radiation / decay?
alpha, beta, and gamma-radiations
Hydrogen bonds
Hydrogen bonds are a special type of dipole-dipole interaction that occurs when hydrogen is bonded to a highly electronegative atom, such as fluorine (F), oxygen (O), or nitrogen (N). These bonds are much stronger than typical dipole-dipole interactions but still weaker than covalent or ionic bonds.
Rank these intermolecular forces from weakest to strongest: London dispersion, dipole-dipole, hydrogen bonding.
London dispersion, dipole-dipole, hydrogen bonding.
These are the only molecules with a permanent dipole moment.
Polar molecules
This group is the most stable on the periodic table with 8 valence electrons.
noble gases
A simplified diagram showing the arrangement of valence electrons.
Lewis structure
Dipole forces
Dipole-Dipole Forces are a type of intermolecular force that occurs between polar molecules. These forces arise due to the permanent dipoles in the molecules, meaning that one part of the molecule is slightly positive and the other is slightly negative because of the unequal sharing of electrons in a covalent bond.
True or False. A hydrogen bond can be between hydrogen and iron.
False.
A chemical bond where two atoms share one or more pairs of electrons, typically between non-metal atoms
Covalent Bond
How many moles does CH4 have?
5 moles
A measure of the size of an atom.
atomic radius