Chemistry: Atom and Short Answer Questions
Part I Multiple choice or short answer questions 1) (2 points) Identify a solid
a. Definite volume and no definite shape
b. no definite volume and no definite shape
c. definite volume and definite shape
2) (2 points) A substance composed of two or more elements in a fixed, definite proportion is
a. A solution.
b. A heterogeneous mixture.
c. An alloy.
d. A homogeneous mixture.
e. A compound. 3) (2 points) Read the water level with the correct number of significant figures.
a. 5.32 mL
b. 5.3 mL
c. 5.320 mL
d. 5 mL
e. 5.3200 mL 4) (2 points) When 2 elements form 2 different compounds, the masses of element B that combine with 1g of element A can be expressed as a ratio of small whole numbers. Which law does this refer to?
a. Law of Definite Proportions
b. Law of Modern Atomic Theory
c. Law of Multiple Proportions
d. First Law of Thermodynamics
e. Law of the Conservation of Mass
5) (2 points) The mass number is equal to
a.a. The sum of the number of protons and neutrons
a.b. The sum of the number of protons, neutrons, and electrons.
a.c. The sum of the number of the neutrons and electrons.
a.d. The sum of the number of the electrons and protons. 6) (3 points) Determine the number of protons, neutrons, and electrons in: C
7) (3 points)Determine the number of protons, neutrons, and electrons in:
8) (3 points) Write the name and the symbol of the element with the following number of protons: 35. Moreover, indicate whether the element is a metal or a nonmental
9) (3 points) Write the name and the symbol of the element with the following number of protons: 20. Moreover, indicate whether the element is a metal or a non-‐metal.
a. Definite volume and no definite shape
b. no definite volume and no definite shape
c. definite volume and definite shape
2) (2 points) A substance composed of two or more elements in a fixed, definite proportion is
a. A solution.
b. A heterogeneous mixture.
c. An alloy.
d. A homogeneous mixture.
e. A compound. 3) (2 points) Read the water level with the correct number of significant figures.
a. 5.32 mL
b. 5.3 mL
c. 5.320 mL
d. 5 mL
e. 5.3200 mL 4) (2 points) When 2 elements form 2 different compounds, the masses of element B that combine with 1g of element A can be expressed as a ratio of small whole numbers. Which law does this refer to?
a. Law of Definite Proportions
b. Law of Modern Atomic Theory
c. Law of Multiple Proportions
d. First Law of Thermodynamics
e. Law of the Conservation of Mass
5) (2 points) The mass number is equal to
a.a. The sum of the number of protons and neutrons
a.b. The sum of the number of protons, neutrons, and electrons.
a.c. The sum of the number of the neutrons and electrons.
a.d. The sum of the number of the electrons and protons. 6) (3 points) Determine the number of protons, neutrons, and electrons in: C
7) (3 points)Determine the number of protons, neutrons, and electrons in:
8) (3 points) Write the name and the symbol of the element with the following number of protons: 35. Moreover, indicate whether the element is a metal or a nonmental
9) (3 points) Write the name and the symbol of the element with the following number of protons: 20. Moreover, indicate whether the element is a metal or a non-‐metal.