ECS3701 STUDY NOTES 2026 FINAL PAPER
STUDY PACK COMPLETE UNIT SUMMARIES
AND KEY CONCEPTS
◉ Chemical properties are determined by ___________.
a. The number of protons an atom has
b. The number of neutrons an atom has
c. The number of electrons an atom has. Answer: C. # of electrons
Chemical properties are determined by The number of electrons an
atom has
◉ In ______ energy states of electrons, each state can only occupy a
finite number of electrons.
a. positive
b. electric
c. atomic
d. discrete. Answer: D. Discrete
, In Discrete energy states of electrons, each state can only occupy a
finite number of electrons
◉ Subshells Correspond to a certain Energy Level. Subshells: s, p, d, f
hold 2, 6, 10, 14 electrons respectively, or _____.
a. 2(2n+1)
b. 2n+1
c. 2(2n-1)
d. 2n-1. Answer: A. 2(2n+1)
Subshells Correspond to a certain Energy Level. Subshells: s, p, d, f
hold 2, 6, 10, 14 electrons respectively, or 2(2n+1)
◉ T or F: Electron Excitation is the transfer of a bound electron to a
less energetic, but still bound state.. Answer: False!!!
Electron excitation is the transfer of a bound electron to a MORE
energetic, but still bound state
◉ When an excited electron falls back to a state of lower energy, it is
called ______
STUDY PACK COMPLETE UNIT SUMMARIES
AND KEY CONCEPTS
◉ Chemical properties are determined by ___________.
a. The number of protons an atom has
b. The number of neutrons an atom has
c. The number of electrons an atom has. Answer: C. # of electrons
Chemical properties are determined by The number of electrons an
atom has
◉ In ______ energy states of electrons, each state can only occupy a
finite number of electrons.
a. positive
b. electric
c. atomic
d. discrete. Answer: D. Discrete
, In Discrete energy states of electrons, each state can only occupy a
finite number of electrons
◉ Subshells Correspond to a certain Energy Level. Subshells: s, p, d, f
hold 2, 6, 10, 14 electrons respectively, or _____.
a. 2(2n+1)
b. 2n+1
c. 2(2n-1)
d. 2n-1. Answer: A. 2(2n+1)
Subshells Correspond to a certain Energy Level. Subshells: s, p, d, f
hold 2, 6, 10, 14 electrons respectively, or 2(2n+1)
◉ T or F: Electron Excitation is the transfer of a bound electron to a
less energetic, but still bound state.. Answer: False!!!
Electron excitation is the transfer of a bound electron to a MORE
energetic, but still bound state
◉ When an excited electron falls back to a state of lower energy, it is
called ______
