Unit 0
Unit 1
Unit 2
Unit 3
Random
100
Determine the number of significant figures in
125,904.000
What is 9?
100
What are the correct charges of protons, neutrons, and electrons?
What is positive, neutral, and negative?
100
This family contains the most active metals
What are the Alkali Metals?
100
This type of compound is formed when carbon reacts with hydrogen
What is Covalent?
100
This is the oxidation number for Zinc
What is 2+
200
Round the following number to three significant figures
17.591
What is 17.6?
200
The number of this atomic particle varies in different isotopes of an element. For example, Carbon-12 and Carbon-14
What are neutrons?
200
Boron, silicon, and arsenic are members of this group on the periodic table
What are Metalloids?
200
This type of compound is formed when metals gain and nonmetals lose electrons
What are ionic compounds?
200
The chemical formula for calcium bromate.
What is Ca(BrO3)3?
300
Use scientific notation to express the number 587,200,000 to two significant figures.
What is 5.90 *108?
300
The lowest allowable state of an atom is called ___?
What is ground state?
300
The group of nonmetals with an oxidation number of 1-
What are the halogens?
300
This is the model for metallic bonding
What is "electron sea"/ "Sea of electrons"
300
The VSEPR shape of a molecule with two lone pairs and two bonding groups
What is bent?
400
Define precision and accuracy.
Precision: a group of results clustered together
Accuracy:close to the correct/absolute value
400
When an element undergoes this form of radiation, atomic mass and atomic number are unchanged
What is gamma radiation?
400
This property increases up and to the right across the periodic table, but does not include the noble gases.
What is electronegativity?
400
This is the formula for the following Aluminum Nitrate
What is Al(NO3)3
400
These conduct electricity when dissolved in water, but not as a solid
What are ionic compounds?
500
Solve the problem and answer with the correct significant figures.
3.01 x 0.060
What is 0.23
500
This element (in isotope notation) is a product when Uranium-238 emits an alpha particle.
What is Thorium-234?
500
This property decreases up and to the right across the periodic table
What is atomic radius?
500
Draw a complete lewis structure for NO3- (that negative is for the oxidation number)
500
The cations that tell you to use the rules of Type 1 ionic naming
Group 1 and 2
Zn, Cd, Al, Ag, and ammonium
(you know the charge!)