Chemical Bonding
Pressure, Temperature, & Volume
Molecules and Compounds
Atomic Structure
Electron Configuration
100
Based on the definition of ionic bonding, when an atom:
- loses an electron, it becomes (-) charged
- gains an electron, it becomes (+) charged
False
100
True or False:
Temperature is based on kinetic energy.
True
100
True or False:
A molecule is any combination of two or more atoms.
True
100
What particles make up an atom?
a. protons
b. protons and neutrons
c. protons, neutrons, and electrons
C
100
What is an electron?
A subatomic particle that has a negative charge.
200
True or False:
An ionic bond occurs between a metal and non-metal.
True
200
What unit represents temperature?
a. STP
b. Kelvin
c. Celsius
d. AMU
Kelvin
200
True or False:
A compound is any combination of two or more different elements
True
200
What particles are located inside the nucleus?
Protons and neutrons
200
An electron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond is known as?
Valence electron
300
D
300
If the volume of the gas shrinks, what happens to pressure?
Increase
300
Is the picture below an example of a molecule or compound?
Compound
300
What is the atomic weight of the element below?
4.0026
300
What does the image below represent?
Bohr Model
400
True or False:
Covalent bonds form only between non-metals
True
400
If temperatures decrease, what happens to air pressure?
Decrease
400
True or False:
A mixture is when two or more things are combined together and chemically bond.
False
400
How many protons are in NA?
11
400
How many valence electrons are shown?
2
500
Is the image below a representation of an ionic or covalent bond?
Covalent
500
When converting temperature from Celsius to Kelvin, how much do you add or subtract to Celsius?
273
500
What is the percent concentration formula?
500
What is the mathematical formula to find neutrons?
Neutrons = Mass number - atomic number
500
Describe the difference between a Bohr Model and Lewis Dot Structure model.
A Bohr model shows the number of electrons in each shell of an atom.
Lewis Dot structure shows the bonding between atoms of a molecule.