Test Bank for
Maders
Understanding Human
Anatomy and
Physiology 8 Edition
th
Susannah Nelson
Longenba
,Chapter 02 Chemistry of Life
Student: ___________________________________________________________________________
1. The smallest unit of matter is the
A. molecule.
B. atom.
C. compound.
D. isotope.
2. An element is any substance that contains one type of
A. molecule.
B. isotope.
C. atom.
D. proton.
3. The positively charged particles in the nucleus of an atom are
A. neutrons.
B. electrons.
C. protons.
D. isotopes.
4. The atomic mass of a proton is
A. 0 atomic mass units.
B. 2 atomic mass units.
C. 1 atomic mass units.
D. -1 atomic mass units.
5. Which of the following subatomic particles are found in the nucleus of an atom?
A. Protons and electrons
B. Electrons and neutrons
C. Protons and shells
D. Neutrons and protons
,6. The number of protons in an atom is called the
A. atomic number.
B. atomic weight.
C. mass number.
D. combining weight.
7. Which subatomic particle determines the identity of an atom?
A. Neutron
B. Proton
C. Electron
D. Prion
8. Which subatomic particle determines the chemical activity of an atom?
A. Neutron
B. Proton
C. Electron
D. Prion
9. Atoms with more than one shell are most stable when the outermost shell contains _____ electrons.
A. 10
B. 1
C. 8
D. 6
10. Different forms of the same element with different numbers of neutrons are called A.
molecules.
B. compounds.
C. isotopes.
D. lattices.
11. Exactly 6.02 x 1023 atoms of any element is called 1 ____ of that element. A.
atomic mass unit
B. isotope
, C. mole
D. mouse
12. Over 90% of the body is composed of four elements: carbon, nitrogen, chlorine, and hydrogen. True False
13. The number of electrons in the outermost shell of an atom will determine the chemical activity of the atom.
True False
14. Phosphorus has an atomic number of 15 and a mass number of 31. How many protons, neutrons, and
electrons does an atom of the element phosphorus have?
15. Describe each of the three subatomic particles with regard to charge, weight, and location in an atom.
16. If the atomic number of an element is 9 and the mass number is 19, how many neutrons does the atom
have? A. 10
B. 9
C. 19
D. 28
17. If the atomic number of an element is 27 and the mass number is 60, how many neutrons does the
atom have? A. 27
Maders
Understanding Human
Anatomy and
Physiology 8 Edition
th
Susannah Nelson
Longenba
,Chapter 02 Chemistry of Life
Student: ___________________________________________________________________________
1. The smallest unit of matter is the
A. molecule.
B. atom.
C. compound.
D. isotope.
2. An element is any substance that contains one type of
A. molecule.
B. isotope.
C. atom.
D. proton.
3. The positively charged particles in the nucleus of an atom are
A. neutrons.
B. electrons.
C. protons.
D. isotopes.
4. The atomic mass of a proton is
A. 0 atomic mass units.
B. 2 atomic mass units.
C. 1 atomic mass units.
D. -1 atomic mass units.
5. Which of the following subatomic particles are found in the nucleus of an atom?
A. Protons and electrons
B. Electrons and neutrons
C. Protons and shells
D. Neutrons and protons
,6. The number of protons in an atom is called the
A. atomic number.
B. atomic weight.
C. mass number.
D. combining weight.
7. Which subatomic particle determines the identity of an atom?
A. Neutron
B. Proton
C. Electron
D. Prion
8. Which subatomic particle determines the chemical activity of an atom?
A. Neutron
B. Proton
C. Electron
D. Prion
9. Atoms with more than one shell are most stable when the outermost shell contains _____ electrons.
A. 10
B. 1
C. 8
D. 6
10. Different forms of the same element with different numbers of neutrons are called A.
molecules.
B. compounds.
C. isotopes.
D. lattices.
11. Exactly 6.02 x 1023 atoms of any element is called 1 ____ of that element. A.
atomic mass unit
B. isotope
, C. mole
D. mouse
12. Over 90% of the body is composed of four elements: carbon, nitrogen, chlorine, and hydrogen. True False
13. The number of electrons in the outermost shell of an atom will determine the chemical activity of the atom.
True False
14. Phosphorus has an atomic number of 15 and a mass number of 31. How many protons, neutrons, and
electrons does an atom of the element phosphorus have?
15. Describe each of the three subatomic particles with regard to charge, weight, and location in an atom.
16. If the atomic number of an element is 9 and the mass number is 19, how many neutrons does the atom
have? A. 10
B. 9
C. 19
D. 28
17. If the atomic number of an element is 27 and the mass number is 60, how many neutrons does the
atom have? A. 27
