AP CHEMISTRY REVIEW PACKET 2026
QUESTIONS AND DETAILED SOLUTIONS
◉ have the smallest atomic radius. Answer: fluorine
◉ have the smallest value for first ionization energy. Answer: lithium
◉ this is the most electronegative element. Answer: fluorine
◉ the nuclear decay of an isotope of this element is used to measure the
age of archaeological artifacts. Answer: carbon
◉ all of the electrons in this element are spin-paired. Answer: neon
◉ this element, present as diatomic gas, makes up most of the earth's
atmosphere. Answer: nitrogen
◉ this element is commonly used in the manufacture of semiconductors.
Answer: copper
◉ this element is a liquid at room temperature. Answer: mercury
, ◉ after oxygen, this is by far the most common element in the earth's
crust. Answer: zinc
◉ what is the most likely electron configuration for a sodium ion in its
ground state?. Answer: 1s2 2s2 2p6 3s1
◉ which of the following statements is true regarding sodium and
chlorine. Answer: chlorine has a greater electronegativity and a larger
first ionization energy
◉ which of the following could be the quantum numbers for the valence
electron in a potassium atom in its ground state. Answer: 4,0,0,1/2
◉ which of the following rules states that no two electrons in an atom
can have the same set of quantum number. Answer: The Pauli exclusion
principle
◉ Which of the following is true of the alkali metal elements. Answer:
they are generally found in nature in compounds
◉ which of the following nuclei has 3 more neutrons than protons?.
Answer: 37Cl
QUESTIONS AND DETAILED SOLUTIONS
◉ have the smallest atomic radius. Answer: fluorine
◉ have the smallest value for first ionization energy. Answer: lithium
◉ this is the most electronegative element. Answer: fluorine
◉ the nuclear decay of an isotope of this element is used to measure the
age of archaeological artifacts. Answer: carbon
◉ all of the electrons in this element are spin-paired. Answer: neon
◉ this element, present as diatomic gas, makes up most of the earth's
atmosphere. Answer: nitrogen
◉ this element is commonly used in the manufacture of semiconductors.
Answer: copper
◉ this element is a liquid at room temperature. Answer: mercury
, ◉ after oxygen, this is by far the most common element in the earth's
crust. Answer: zinc
◉ what is the most likely electron configuration for a sodium ion in its
ground state?. Answer: 1s2 2s2 2p6 3s1
◉ which of the following statements is true regarding sodium and
chlorine. Answer: chlorine has a greater electronegativity and a larger
first ionization energy
◉ which of the following could be the quantum numbers for the valence
electron in a potassium atom in its ground state. Answer: 4,0,0,1/2
◉ which of the following rules states that no two electrons in an atom
can have the same set of quantum number. Answer: The Pauli exclusion
principle
◉ Which of the following is true of the alkali metal elements. Answer:
they are generally found in nature in compounds
◉ which of the following nuclei has 3 more neutrons than protons?.
Answer: 37Cl
