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Biology 102 Exam LATEST 2026-2027 WITH
COMPLETE QUESTIONS AND CORRECT VERIFIED
ANSWERS LATEST UPDATE JUST RELEASED THIS
YEAR
The smallest unit of matter is the
A)molecule
B)atom
C)compound.
D)isotope
atom
An element is any substance that contains one type of
A)molecule
B)isotope
C)atom
D)proton.
atom
The positively charged particles in the nucleus of an atom are
A)neutrons
B)electron
1
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C)protons
D)isotopes.
protons
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.
1 atomic mass units
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
Neutrons and protons
The number of protons in an atom is called the
A)atomic number
B)atomic weight
C)mass number
D)combining weight
2
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atomic number
Which subatomic particle determines the identity of an atom? A)Neutron
B)Proton
C)Electron
D)Prion
Proton
Which subatomic particle determines the chemical activity of an atom?
A)Neutron
B)Proton
C)Electron
D)Prion
Electron
Atoms with more than one shell are most stable when the outermost shell contains _____
electrons.
A)10
B)1
C)8
D)6
8
3
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Different forms of the same element with different numbers of neutrons are called
A)molecules
B)compounds
C)isotopes
D)lattices
isotopes
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
mole
True False: Over 90% of the body is composed of four elements: carbon,nitrogen,chlorine,and
hydrogen.
False: Over 90% of the body is composed of four elements: carbon,nitrogen,oxygen,and
hydrogen.
True False: number of electrons in the outermost shell of an atom will determine the chemical
activity of the atom.
True
4
SUCCESS!
Biology 102 Exam LATEST 2026-2027 WITH
COMPLETE QUESTIONS AND CORRECT VERIFIED
ANSWERS LATEST UPDATE JUST RELEASED THIS
YEAR
The smallest unit of matter is the
A)molecule
B)atom
C)compound.
D)isotope
atom
An element is any substance that contains one type of
A)molecule
B)isotope
C)atom
D)proton.
atom
The positively charged particles in the nucleus of an atom are
A)neutrons
B)electron
1
SUCCESS!
,Page 2 of 44
C)protons
D)isotopes.
protons
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.
1 atomic mass units
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
Neutrons and protons
The number of protons in an atom is called the
A)atomic number
B)atomic weight
C)mass number
D)combining weight
2
SUCCESS!
,Page 3 of 44
atomic number
Which subatomic particle determines the identity of an atom? A)Neutron
B)Proton
C)Electron
D)Prion
Proton
Which subatomic particle determines the chemical activity of an atom?
A)Neutron
B)Proton
C)Electron
D)Prion
Electron
Atoms with more than one shell are most stable when the outermost shell contains _____
electrons.
A)10
B)1
C)8
D)6
8
3
SUCCESS!
, Page 4 of 44
Different forms of the same element with different numbers of neutrons are called
A)molecules
B)compounds
C)isotopes
D)lattices
isotopes
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
mole
True False: Over 90% of the body is composed of four elements: carbon,nitrogen,chlorine,and
hydrogen.
False: Over 90% of the body is composed of four elements: carbon,nitrogen,oxygen,and
hydrogen.
True False: number of electrons in the outermost shell of an atom will determine the chemical
activity of the atom.
True
4
SUCCESS!
