CHEM1305 Introductory Chemistry
Chapter 4 Homework Assignment
Question 1Which of the following scientists proposed the first Atomic Theory?
J. J. Thomson
Question 2Match the following information about the subatomic particles:
relative mass is 0.00055
relative charge is +1
location is inside nucleus
neutrons and protons
Other Incorrect Match Options:
neutrons and electrons
Question 3Refer to the periodic table (https://ptable.com/ (Links to an external site.)) and type in the number of protons each of the following elements have in their nucleus:
silver, Ag 47
xenon, Xe 54
potassium, K 19
copper, Cu 29
nitrogen, N 7
Question 4Choose the correct atomic notation for an atom of cobalt with 32 neutrons in its nucleus.
Question 5What is the term for atoms of the same element that have different numbers of neutrons.
Question 6Type in the number of neutrons in each of the following isotopes of tungsten, W:
Question 7Fill in the following table (assume the atoms are neutral):
Isotope Number of Protons Number of Neutrons Number of Electrons
Question 8Chlorine has two naturally occurring isotopes: Cl-35 with mass 34.969 amu and a natural abundance of 75.78%, and Cl-37 with mass 36.966 amu and a natural abundance of 24.22%. What is the calculated atomic mass of chlorine?
Question 9Type in how many electrons can each of the following sublevels hold:
Question 10Electrons will occupy sublevels in order of increasing…
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