CHEM 1020 EXAM STUDY GUIDE 2026
BUNDLED QUESTIONS AND VERIFIED
SOLUTIONS GRADED A+
◉ How are frequency and wavelength related? Answer: the higher
the frequency, the lower the wavelength
◉ Which neutral element does the following abbreviated
configuration correctly describe?
1s2 2s2 2p6 Answer: Ne (Neon)
◉ What is an atomic orbital? Answer: It is a probability cloud that
shows the probable location of an electron within a given atom
◉ piece of aluminum = 10g
volume of cylinder before immersion = 35.0mL
volume after immersion = 38.7mL
what is the density? Answer: 98.7mL-35mL = 3.7mL = volume
D=M/V
D=10g/3.7mL
D=2.7g/mL
, ◉ If you remove 2 protons and 2 neutrons from a gold atom (Au),
what new element is formed (if any)? Answer: Ir (Iridium)
move 2 elements to the left on the PT
◉ If you remove 2 protons and 2 electrons from a sulfur atom (S),
what new element is formed (if any)? Answer: Si (Silicon)
move 2 elements to the left... then subtract the 2 electrons that are in
Sulfur to get neutral Silicon
◉ Which of the following elements are in the same period as
Magnesium (Mg)? Answer: Cl (Chlorine)
periods are rows
◉ Which of the following elements are in the same group as silicon
(Si)? Answer: C (Carbon)
groups are columns
◉ Elements that are in the same _____ have tendency to have very
similar chemical properties to due periodic trends. Answer: group
BUNDLED QUESTIONS AND VERIFIED
SOLUTIONS GRADED A+
◉ How are frequency and wavelength related? Answer: the higher
the frequency, the lower the wavelength
◉ Which neutral element does the following abbreviated
configuration correctly describe?
1s2 2s2 2p6 Answer: Ne (Neon)
◉ What is an atomic orbital? Answer: It is a probability cloud that
shows the probable location of an electron within a given atom
◉ piece of aluminum = 10g
volume of cylinder before immersion = 35.0mL
volume after immersion = 38.7mL
what is the density? Answer: 98.7mL-35mL = 3.7mL = volume
D=M/V
D=10g/3.7mL
D=2.7g/mL
, ◉ If you remove 2 protons and 2 neutrons from a gold atom (Au),
what new element is formed (if any)? Answer: Ir (Iridium)
move 2 elements to the left on the PT
◉ If you remove 2 protons and 2 electrons from a sulfur atom (S),
what new element is formed (if any)? Answer: Si (Silicon)
move 2 elements to the left... then subtract the 2 electrons that are in
Sulfur to get neutral Silicon
◉ Which of the following elements are in the same period as
Magnesium (Mg)? Answer: Cl (Chlorine)
periods are rows
◉ Which of the following elements are in the same group as silicon
(Si)? Answer: C (Carbon)
groups are columns
◉ Elements that are in the same _____ have tendency to have very
similar chemical properties to due periodic trends. Answer: group
