2. Which two elements have chemical properties that are most similar?
a) Cl and Ar
b) Li and Na
c) K and Ca
d) C and N

3. Properties of nonmetals include
a) low ionization energy and low electronegativity
b) low ionization energy and high electronegativity
c) high ionization energy and low electronegativity
d) high ionization energy and high electronegativity

4. When an electron in an atom moves from a lower energy state to a higher energy state, the electron will
a) absorb energy, only
b) release energy, only
c) both absorb and release energy
d) neither absorb nor release energy

5. What is the total number of valence electrons in an atom of xenon?
a) 0
b) 2
c) 8
d) 18

6. Which species has the same electron configuration as a Cl^- ion?
a) S
b) Ar
c) Br^-
d) F^-

7. Which list of elements contains two semimetals (metalloids)?
a) Ga, Ge, Sn
b) Si, P, S
c) C, Si, Ge
d) B, C, N

8. Atoms of an element in the ground state found in the fourth period of the Periodic Table must have
a) a 3d sublevel
b) 4 valence electrons
c) electrons in the fourth principal energy level
d) similar properties to the other elements in the period

9. What is the maximum number of electrons in an orbital of any atom?
a) 1
b) 2
c) 6
d) 10

10. A Mg atom differs from a Mg²⁺ ion in that the atom has a
a) smaller radius
b) larger radius
c) smaller nucleus
d) larger nucleus

Score =
Correct answers:

Back to Quizzes Menu