Bond Energy
When a bond is broken, energy is _____________
absorbed/gained
Ionic bonding occurs between which types of elements?
Metal and non-metal
Covalent bonding occurs between ____________
At least two Non-metals
Bond polarity is determined by measuring ___________________
Difference in electronegativity values
Determine the atomic mass of an atom that has 8 protons, 10 neutrons, and 7 electrons
18 amu.
When a bond is formed, energy is _____________
released/lost
Write the ionic formula for the compound that would form between:
Al and S
Al2S3
Name the 7 diatomic molecules
Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine
Is the following bond polar or non-polar:
C-H
Non-polar
State the isotope of Lithium (Li) that is most abundant.
Li-7
Why do atoms bond?
To increase stability (get to 8 VE)
Are ionic compounds able to conduct electricity in all states of matter? Explain.
Only when dissolved in an aqueous solution
What property describes covalent bonds as being weaker than ionic bonds?
Melting point
An asymmetrical molecule would best be described as:
Polar
Describe the trend in first ionization energy down group 2
It decreases
Why does potential energy increase when two non-metals get too close to each other?
Atoms repel each other
Name the following compound
(NH4)3P
Ammonium Phosphide
How many total electrons are shared in a bond between two oxygen atoms?
4
Draw the Lewis Dot Diagram for a MOLECULE of water
O has 6 VE, 2 bonding
Each H has 1 VE, bonding with an O
Molecule is bent (asymmetrical)
In a heating curve of water, as the potential energy increases during a phase change, the kinetic energy _______________
Stays the same.
Rank the states of matter in terms of their intermolecular forces from least to greatest.
Solid < Liquid < Gas
Draw the Lewis dot diagram for the oxygen ION
Oxygen, 8 valence electrons, brackets, -2 charge
Name this compound:
SF6
Sulfur Hexafluoride
Why do oil and water not mix?
Oil is non-polar and water is polar.
"Like dissolves like"
Convert 10 km to cm.
1,000,000 cm