Atomic Number & Mass Questions
1. If lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons,
and electrons, respectively, is:
A.
3,4,3
B. 4,3,3
C.
3,3,4
D.
4,4,3
2. If Magnesium has an atomic number of 12 and a mass number of 24, the correct number of protons,
neutrons, and electrons, respectively, is:
A.
8,10,12
B. 12,12,12
C.
12,24,12
D.
24,12,12
3. If Zinc has an atomic number of 30 and a mass number of 65, the correct number of protons, neutrons,
and electrons, respectively, is:
A.
30,35,35
B. 30,35,30
C.
35,30,35
D.
95,65,30
4. If Bromine has an atomic number of 35 and has 45 neutrons, what is its mass number?
A.
35
B. 45
C.
10
D.
80
5. If Aluminum has an atomic number of 13 and has 14 neutrons, what is its mass number?
A.
1
B. 27
C.
13
D.
14
6. If Uranium's atomic number is 92 and it has 10 neutrons, how many protons does it have?
A.
82
B. 102
C.
92
D.
10
7. If Sodium has an atomic number of 11 and a mass number of 23, how many protons, neutrons, and
electrons does it have, respectively?
A.
11,12,12
B. 12,11,12
C.
11,12,11
D.
12,12,11
8. If Phosphorus has an atomic mass of 30 and 15 neutrons, how many protons does it has?
A.
15
B. 45
C.
30
D.
60
9. If carbon has an atomic mass of 12 and 6 neutrons, how many protons and electrons does it have,
respectively?
A.
6,6
B. 6,12
C.
12,6
D.
24,6
10. If Potassium has 19 protons, 19 electrons, and 20 neutrons, what is its atomic mass?
A.
1
B. 58
C.
39
D.
29
11. Atomic number for Oxygen?
12. Atomic number for Nitrogen?
13. Atomic number for Sodium?
14. Atomic number for Aluminum?
15. Atomic number for Beryllium?
16. How many neutrons does an atom of Yttrium have in its nucleus?
17. How many electrons surround the nucleus of an atom of Radon?
18. How many protons does an atom of Astatine (At) have in its nucleus?
19. How many neutrons does an atom of Actinium (Ac) have in its nucleus?
20. How many electrons surround the nucleus of an atom of Francium (Fr)?
21. This is the smallest particle of an element.
atom
compound
mixture
22. This is a substance made up of only one kind of atom.
mixture
compound
element
23. The center of the atom that contains the proton and neutron is the
electron
nucleus
orbit
24. An atom with more neutrons than protons is called a/an
element
compound
isotope
25. The part of the atom with a positive charge is the
proton
neutron
electron
26. The part of the atom with a negative charge is the
proton
neutron
electron
27. Most of the mass of an atom is in the nucleus.
True
False
28. The total number of protons in the atom is its
atomic weight
atomic energy
atomic number
29. The sum of the protons and neutrons in an atom is its
atomic weight
atomic energy
atomic number
30. The part of the atom that orbits the nucleus is the
proton
neutron
electron
Check out these websites for more questions
http://highered.mheducation.com/sites/0070938539/student_view0/chapter2/study_quiz_1.html
http://chemistry.about.com/library/weekly/blelemnoquiz.htm
http://www.triviaplaza.com/atomic-number-element-1-quiz/