CHM1100C Module 02 Quiz Latest 2023

CHM1100C Section 06 General Chemistry

Module 02 Quiz

Question 1

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 2

You have been tasked to give a report about the differences in the Bohr Model v. Quantum Mechanical Model of the atom. Describe the 5 main differences between the Bohr Atom Model and the Quantum Mechanical model.

Question 3

Describe the difference between the principal quantum number and the angular momentum quantum number.

Question 4

How does an orbit differ from an orbital?

Question 5

An element has 2 neutrons, 2 electrons and 2 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

An element has 4 neutrons, 3 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 7

How many protons do you need to add to the orbit to make a stable fluorine atom?

Question 8

How many electrons do you need to add to the orbit to make a stable Beryllium atom?

Question 9

Which ion has +3 charge, 28 electrons, and an atomic mass of 70 amu?

Question 10

Identify the element that fits into each of these categories on the periodic table: Halogens

Question 11

Identify the element that fits into each of these categories on the periodic table: Nonmetal

Question 12

Identify the element that fits into each of these categories on the periodic table: Noble gases

Question 13

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 14

Calculate the average atomic mass for the following isotopes: Lithium: lithium-6 (6.0151 amu) at 7.59%, lithium-7 (7.0160 amu) at 92.41%

Question 15

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: NaHCO3

Question 16

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 17

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 18

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 19

As a medical professional, it is very important to understand the types of radiation and wavelengths in the electromagnetic spectrum. What types of radiation are safe for the human body, and what types of radiation are unsafe for the human body?

Question 20

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 21

Identify the shape of the sub shell and how many electrons it holds: "D" sub shell

Question 22

Identify which of these orbitals has the lowest energy.

Question 23

Which of the following orbitals do not exist?

Question 24

Identify which of these orbitals has the lowest energy.

Question 25

State the number of TOTAL electrons and VALENCE electrons in each of the following atoms: Fr

Question 26

State the number of TOTAL electrons and VALENCE electrons in each of the following atoms: Ar

Question 27

Identify the element associated with the following electron configurations.

1s2 2s2 2p6 3s2 3p2

Question 28

Identify the element associated with the following electron configurations.

1s2 2s2 2p6 3s2 3p6 4s2 3d5

Question 29

Write the electron configurations for the following ions

Mg2+

Question 30

Write the electron configurations for the following ions

Li+