Name:
MME 2001
QUIZ
1. The smallest particle into which an element can be divided and still have the properties of that element is called
a) nucleus b) electron c) atom d) neutron
2. How would you describe the nucleus?
a) dense, positively charged b) mostly empty space, positively charged c) tiny, negatively charged
d) dense, negatively charged
3. Every atom of a given element has the same number of
a) protons. b) neutrons. c) electrons. d) isotopes.
4. Which statement is true about isotopes of the same element?
a) They have the same number of protons. b) They have the same number of neutrons. c) They have a different
atomic number. d) They have the same mass.
5. Which of the following has the least mass in an atom?
a) nucleus b) proton c) neutron d) electron
6. If an isotope of uranium, uranium-235, has 92 protons, how many protons does the isotope uranium-238 have?
a) 92 b) 95 c) 143 d) 146
7. A carbon atom with 6 protons, 6 electrons, and 6 neutrons would have a mass number of
a) 6. b) 18. c) 12. d) 15.
8. Elements on the periodic table are arranged in order of
a) increasing density. b) decreasing density. c) increasing atomic number. d) decreasing atomic number.
9. Nitrogen has the atomic number 7. An isotope of nitrogen containing seven neutrons would be
a) nitrogen-13 b) nitrogen-14 c) nitrogen-15 d) nitrogen-16
10. The total number of electrons that can occupy the principle energy level n is:
a) 2 b) 8 c) n d) 2n2
11. For an electron with angular quantum number ℓ = 2, the magnetic quantum number m can have
a) an infinite number of values b) only one value c) one of two possible values d) one of three possible values
e) one of five possible values
12. The total number of electrons allowed in a ℓ = 1 sublevel is
a) 2 electrons b) 6 electrons c) 8 electrons d) 10 electrons
e) 14 electrons
13. A 3p electron can have possible magnetic quantum number m values of
a) 1, 2, and 3 b) +½ or -½
c) 0, 1, and 2
d) -1, 0 and 1 e) -2, -1, 0, 1 and 2
14. Which of the following set of quantum numbers would represent an electron in a 3d orbital?
a) 3, 2, 1, -½ b) 3, 2, 0, +½
c) either a or b d) neither a nor b
15. Calcium has an atomic number of 20. A stable calcium atom has an electronic configuration of
a) 1s22s22p63s23p64s2 b) 1s21p61d101f2 c) 1s22s22p63s23p63d2 d) 1s22s22p63s23p6 e) 1s21p62s22p63s23p2
16. Phosphorus has an atomic number of 15. A stable phosphorus atom has an electronic configuration of
a) 1s21p62s22p5 b) 1s22s22p63s23p3 c) 1s22s22p63s23p14s2 d) 1s21p61d7
17. Which of the following is an appropriate electron configuration for a neutral sodium atom (Z = 11)?
a) 1s22s22p6 b) 1s22s32p6 c) 1s22s22p7 d) 1s22s22p63s1 e) 1s22s22p63s2
18. How do the size of a negative ion compare to the size of the atom that formed it?
a) it's smaller
b) it’s larger
c) it’s the same size
d) it varies
19. Hund's rule of maximum multiplicity states:
a) all orbitals of a given sublevel must be occupied by a single electron before pairing begins.
b) no two electrons can share the same set of quantum numbers.
c) it is impossible to accurately determine both the position and momentum of an electron.
d) S orbitals can hold up to 2 electrons
20. Which one of the following is a proper orbital configuration?