Reference no: EM13832109

Question 1. The chemical name for table salt is sodium chloride, or simply NaCl. What type of chemical is NaCl?

Compound

Ion

Element

Molecule

 

Question 2. While the maximum number of electrons required to fill the outermost shell of an atom varies depending on the size of the atom, almost all of the smaller atoms (atomic numbers 2-20) are considered stable (nonreactive) when they contain ________ electron(s) in the outermost shell.

1

8

16

2

 

Question 3. Which number represents the atomic weight of carbon?

6

18

12

Not enough information given

 

Question 4. How many neutrons are in a typical carbon atom?

12

6

18

Not enough information given

 

Question 5. What is the most common element in your body?

Sugar

Carbon

Oxygen

Water

 

Question 6. The octet rule states that the outermost shell (valence) can hold up to ___ electrons

8

3

2

4

 

Question 7. The typical carbon atom is described in the periodic table by the accompanying box. How many protons are in a typical carbon atom?

18

6

12

Not enough information given

 

Question 8. Identify the reactants in the following chemical reaction: C10H8 + 12 O2 → 10 CO2 + 4 H2O

10 CO2 and 4 H2O

C10H8 and 12 O2

C10H8 and 10 CO2

12 O2 and 4 H2O

 

Question 9. Identify the part of the atom that most determines the chemical reactivity of the atom.

The number of neutrons

The number of electrons

The number of shells

The number of protons

 

Question 10. Which is not one of the four atoms that make up the bulk of living organisms?

Nitrogen

Oxygen

Calcium

Carbon