1. What are Isotopes?
a) Atoms that consist of the same amount of protons and neutrons in a nucleus
b) Atoms that contain more protons than electrons
c) Atoms of the same element with different numbers of electrons
d) None of the above
Answer C

2. Describe the Empirical formula.
a) Relative amounts of each element of each element in a compound.
b) Shows all types of electromagnetic radiation.
c) The minimum quantity of energy that can be gained or lost by an atom.
d) Lowest whole number ratio of the atoms of an element in a compound.
Answer D

3. The energy required to remove an electron from an atom is the atoms
a) ionization level
b) electronegativity
c) atomic number
d) atomic Mass
Answer A

4. a) Anion b) Gas c) Cation d) Liquid
The formation of a ______________ by the loss of one or more electrons always leads to a decrease in atomic radius because the removal of the highest-energy-level electrons results in a smaller electron cloud.
a) Anion
b) Gas
c) Cation
d) Liquid
Answer C

5. ____________ involves the sharing of electron pairs between two atoms
a) Ionic bonding
b) Electronegativity
c) Molar mass
d) Covalent bonding
Answer D

6. What’s the equation to find the energy of a photon?
a) E = h/v
b) E = hv
c) E = h+v
d) E = cv
Answer B

7. What’s the empirical formula for a compound that is 3. 7% H, 44
What’s the empirical formula for a compound that is 3.7% H, 44.4% C and 51.9% N?
a) HCN
b) NCH
c) CHN
d) NHC
Answer A

8. Organize the following elements in order of ascending atomic radii: Beryllium, Nitrogen, Carbon, and Fluorine
a.) Be, N, C, F
b.) N, F, C, Be
c.) F, N, C, Be
d.) Be, C, N, F
Answer C

9. A sample of Cupric Chloride (CuCl2) weighs 117. 6455 grams
A sample of Cupric Chloride (CuCl2) weighs grams. how many molecules are in this sample? (atomic mass of Cu= Cl=35.453)
a.) x 1023
b.) 3.01x 1023
c.) 7.15 x1023
d.) 2.25 x 1023
Answer A

10. What is the correct name for the following compound ? PbO3
a) Lead Dioxide
b) Oxide Lead
c) Lead Oxate
d) Lead Trioxide
e) Lead Oxygen
Answer D

11. What is the energy of a photon with a frequency of 5.00 nm?
a)   kJ
b)   2394 kJ
c) K
d) kJ
Answer D

12. What does VSEPR help you do?
a) Tells you the amount of electrons in the element or compound
b) Useful for explaining the shapes of molecules
c) Helps you determine oxidation state
d) Helps you determine Lewis Dot Structures
Answer B

13. The Electronegativity difference is 0.5 what type of bond is it?
a) Ionic Bond
b) Polar-covalent Bond
c) Non-polar covalent bond
d) Trick question there is no bond
Answer B

14. What happens in a decomposition reaction?
a) Single compound undergoes a reaction to produce two or more similar substances
b) One element replaces a similar element in the compound
c) Substances combine with oxygen, releasing a large amount of energy in the form of light and heat
d) Absolutely nothing
Answer A

15. For metals in an activity series the greater
a) Ability to lose elections
b) ease to gain
c) No Reaction
d) None of the above
Answer A

16. How man valence electrons does Nitrogen have
How man valence electrons does Nitrogen have? and what is its oxidation state?
a) 5, 2-
b) 4, 4-
c) 5, 3-
d) 4, 3-
Answer C