Chapter 3
Which subshell is described to have a spherical shape?
s-subshell
What type of bond is present when electrons are shared between two non-metal atoms?
Covalent
Calculate the electronegativity difference for SeO2.
0.8
What state are ionic compounds at room temperature?
Solids
What is the Aufbau principle?
Electrons fill atomic orbitals in order of increasing energy levels, starting with the lowest energy.
How many orientations are possible in a d-orbital?
5
Draw the Lewis structure of BF3
3 bonds, no lone pairs
What two conditions must be met in order for a molecule to be polar?
1. polar covalent bonds
2. asymmetrical
What are the four types of crystals?
Ionic, Metallic, Molecular, Covalent Network
Niels Bohr proposed a model of the atom that was consistent with experimental observations of the line spectrum of what atom?
Hydrogen
What did Shrodinger contribute to the quantum mechanical model of the atom?
the wave equation
When a reaction occurs between atoms with ground state electron configurations of 1s22s2 and 1s22s22p5, what is the predominant type of bond formed?
Ionic
An electronegativity of greater than 1.7 is what bond type?
Ionic
How does size of charge in an ionic crystal, affect the force of attraction?
Greater charge= Greater force of attraction
What type of crystal is a diamond?
Covalent Network
Draw the energy level diagram for an oxygen atom.
1s22s22p4
Square Planar
What is the strongest intermolecular force?
Hydrogen bonding
How does size of ions in an ionic crystal, affect the force of attraction?
Smaller ions= Greater force of attraction
Molecules with a tetrahedral shape will have what kind of hybrid orbitals?
sp3
What is the shorthand electron configuration for the atom with the highest electronegativity?
F: [He]2s22p5
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
Predict the order of increasing melting points for the following substances: Li2O, CO2, H2O
CO2 < H2O < Li2O
What two types of solids have relatively high melting points and are good conductors of electricity when melted?
Ionic and Metallic
NH3 will have what kind of hybrid orbitals?
sp3