,1. Which of the following statements best describes the
kinetic-molecular theory?
A) It is a theory that defines the behavior of solids and
liquids.
B) It is a theory that predicts the properties of elements
based on their atomic number.
C) It is a theory that explains the behavior of gases in
terms of the motion of their particles.
D) It is a theory that describes the stationary states of
atoms.
Correct Answer: C
2. According to the ideal gas law, what is the relationship
between pressure (P), volume (V), and temperature (T) of a
gas?
A) P ∝ V/T
B) PV = nRT
C) P + V = T
D) PV ∝ 1/T
Correct Answer: B
, 4. How does electron configuration influence the chemical
behavior of an element?
A) It determines the element's position in the periodic
table.
B) It dictates the type of chemical bonds an element can
form.
C) It defines the atomic mass of the element.
D) It predicts the isotopic distribution of the element.
Correct Answer: B
5. Which periodic trend increases as you move from left to
right across a period in the periodic table?
A) Atomic radius
B) Electronegativity
C) Metallic character
D) Atomic mass
Correct Answer: B
6. What is the primary factor that affects the periodic
properties of elements?
A) The number of neutrons in the nucleus
B) The distance of the valence shell from the nucleus
C) The number of protons in the nucleus
D) The presence of isotopes
Correct Answer: C
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