You have been tasked to give a report about the differences in the Bohr Model v. Quantum MechanicalModel of the atom. Describe the 5 main differences between the Bohr Atom Model and the Quantum
Mechanical model.
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Question 2
1 Point
How does an orbit differ from an orbital?
Question 3
1 Point
Why is it necessary for the spins of two electrons that occupy one orbital, to be in the opposite
directions? What is that law called?
Question 4
1 Point
Describe the difference between the principal quantum number and the angular momentum quantum
number.
Question 5
1 Point
An element has 6 neutrons, 4 electrons and 4 protons. Which element does this describe? Is it a neutral
atom, isotope, or an ion? What is the mass number? What is the net charge?
Question 6
1 Point
An element has 4 neutrons, 3 electrons and 3 protons. Which element does this describe? Is it a neutral
atom, isotope, or an ion? What is the mass number? What is the net charge?
Question 7
1 Point
How many protons do you need to add to the orbit to make a stable fluorine atom?
8 protons
7 protons
9 protons
10 protons
Question 8
1 Point
How many electrons do you need to add to the orbit to make a stable Beryllium atom?
2 electrons
4 electrons
3 electrons
5 electrons
Question 9
1 Point
Which ion has +3 charge, 28 electrons, and an atomic mass of 70 amu?
7132Ge+3
7031Ga+3
7231Ga+3
6931Zn+3
Question 10
1 Point
Identify the element that fits into each of these categories on the periodic table: Halogens
Strontium and Lithium
Iodine and Fluorine
Arsenic
Iodine and Argon
Question 11
1 Point
Identify the element that fits into each of these categories on the periodic table: Noble gases
Sodium
Argon
Zirconium
Magnesium
Question 12
1 Point
Identify the element that fits into each of these categories on the periodic table: Alkaline Earth Metals
Strontium
Iron
Phosphorus
Argon
Question 13
1 Point
Calculate the average atomic mass for the following isotopes: Boron: boron-10 (10.0129 amu) at 19.9%,
boron-11 (11.0093 amu) at 80.1%.
Question 14
1 Point
Calculate the average atomic mass for the following isotopes: Hydrogen: hydrogen-1 (1.0078 amu) at
99.989%, hydrogen-2 (2.0141 amu) at 0.0115%
Question 15
1 Point
Liv is trying to decide which molecules to use for her chemistry reaction. The first thing she has to do is
find the molar mass of each of the molecules she can potentially use. Calculate the molar mass of the
molecules: MgO
Question 16
1 Point
Liv is trying to decide which molecules to use for her chemistry reaction. The first thing she has to do is
find the molar mass of each of the molecules she can potentially use. Calculate the molar mass of the
molecules: C18H34O3
Question 17
1 Point
The National Institute of Health (NIH) provides dietary recommendations for adults over various
supplements. Convert the following recommendations for supplements over to mass or moles. You have
0.834 moles of Potassium. The NIH recommends 2,600mg of potassium as a daily intake
recommendation. Convert the moles to mg.
Question 18
1 Point
The National Institute of Health (NIH) provides dietary recommendations for adults over various
supplements. Convert the following recommendations for supplements over to mass or moles. You have
1.45 moles of Vitamin C (C6H8O6). Convert moles to mg to determine if it matches the NIH’s daily
recommendation of 75mg.
Question 19
1 Point
As a medical professional, it is very important to understand the types of radiation and wavelengths in
the electromagnetic spectrum. At 400nm, would the wavelength be short or long? Would the frequency
be high or low?
Question 20
1 Point
As a medical professional, it is very important to understand the types of radiation and wavelengths in
the electromagnetic spectrum. What are the 7 types of radiation in the electromagnetic spectrum?
Question 21
1 Point
Identify the shape of the sub shell and how many electrons it holds: “P” sub shell
dumbbell, holds 6 electrons
clover, holds 10 electrons
dumbbell, holds 8 electrons
sphere, holds 4 electrons
Question 22
1 Point
Identify which of these orbitals has the lowest energy.
5f
7p
6f
5p
Question 23
1 Point
Which of the following orbitals do not exist?
3p
7f
4s
7p
Question 24
1 Point
Which of the following orbitals do not exist?
1s
4s
4f
6f
Question 25
1 Point
State the number of TOTAL electrons and VALENCE electrons in each of the following atoms: Fr
Question 26
1 Point
State the number of TOTAL electrons and VALENCE electrons in each of the following atoms: Sn
Question 27
1 Point
Identify the element associated with the following electron configurations.
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d8
Question 28
1 Point
Identify the element associated with the following electron configurations.
1s2 2s2 2p6 3s2 3p2
Question 29
1 Point
Write the electron configurations for the following ions
S2-
Question 30
1 Point
Write the electron configurations for the following ions
F-
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