Unit 1
Unit 2
Unit 3
Unit 4
100
What element is the atom with 12 protons, 11 electrons and 13 neutrons. What is it's mass?
Magnesium-25
100
Name two elements that have the same valence electrons as Beryllium.
Mg, Ca, Sr, Ba, Ra
100
When an electron absorbs light, what will happen?
An electron will go from the ground state to excited state.
100
Is AlI3 ionic or covalent? Explain.
Ionic. Metal and nonmetal
200
What is the element and charge of an atom with 7 protons, 9 electrons and 6 neutrons
Nitrogen with a -2 charge
200
Put the following from lowest to greatest atomic radius: Calcium, Bromine, Fluorine, Chlorine
Fluorine, Chlorine, Bromine, Calcium
200
If the wavelength increases, the frequency_______ and the energy _______
Decreases, decreases
200
What is the name of N2O3
Dinitrogen Trioxide
300
How many protons, neutrons and electrons does a neutral Sulfur-35 have?
Protons: 16
Neutrons: 19
Electrons: 16
300
Which of the following requires the most energy to take an electron from them? Which trend does this represent?
Carbon, Nitrogen, Oxygen
Oxygen, Ionization Energy
300
1s22s23p4 is the electron configuration for what neutral atom.
Oxygen
300
What is the formula for Sodium Oxide.
Na2O
400
How many electrons does Phosphorus with a -3 have?
18
400
Which of the following are nonmetals?
Hydrogen,Magnesium, Potassium, Aluminum, Oxygen, Sulfur
Oxygen, sulfur, Hydrogen
400
What is the electron configuration of Na+1
1s22s22p6
400
Draw the lewis dot structure for CBr4. What is the shape?
Tetrahedral
500
What is the average atomic mass using the following data.
F-19 with a % abundance of 33%
F-21 with a % abundance of 67%
20.34 amu
500
What are the charges for the following atoms:
Strontium, Chlorine, Nitrogen
+2, -1, -3
500
What will the frequency be if the energy of light is 8.9x10-19 J.
1.35x1015 Hz
500
What is the shape of PH3?
Trigonal Pyramid