Transcript Biology Visual PPT Quiz 4

Biology Visual PPT Quiz 4
Chemistry of Life
Q1: A beryllium atom has 4 protons, 5 neutrons, and
4 electrons. What is the mass number of this atom?
• A. 4
b. 5
c. 8
d. 9
e. 13
Q2: The atomic number of an element is equal
to:
• A. the number of protons plus the number of
electrons
• B. the number of neutrons in the atom
• C. the number of protons in the atom
• D. the number of protons plus the number of
neutrons
• E. the number of neutrons minus protons
Q3: If lithium has an atomic number of 3 and a mass
number of 7, the correct number of protons,
neutrons, and electrons, respectively, is:
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A. 3,4,3
B. 4,3,3
C. 3,3,4
D. 4,4,3
E. 3,4,4
Q4: If Magnesium has an atomic number of 12 and a
mass number of 24, the correct number of protons,
neutrons, and electrons, respectively, is:
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A. 8,10,12
B. 12,12,12
C. 12,24,12
D. 24,12,12
E. 26,12,12
Q5: If Bromine has an atomic number of 35 and
has 45 neutrons, what is its mass number?
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A. 35
B. 45
C. 10
D. 80
E. 85
Q6: If Potassium has 19 protons, 19 electrons,
and 20 neutrons, what is its atomic mass?
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A. 1
B. 58
C. 39
D. 29
E. 38
Q7: If Zinc has an atomic number of 30 and a mass
number of 65, the correct number of protons,
neutrons, and electrons, respectively, is:
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A. 30,35,35
B. 30,35,30
C. 35,30,35
D. 95,65,30
E. This time, none of them are right.
Q8:Which two particles would be attracted to
each other?
• a. electrons and neutrons
b. electrons and protons
c. protons and neutrons
d. all particles are attracted to each other
• e. none of them are attracted to each other
Q9: The atomic number of an atom is:
• e. the number of electrons
b. how the periodic table is arranged
c. the number of protons
d. the number of protons plus the number of
neutrons
• e. both b and c are both correct answers
Q10: Changing the number of neutrons of an
atom changes its:
• a. isotope
b. element
c. ion
d. charge
• e. it doesn’t change anything
Bonus(?pts): To change Li to Li+, you need to:
• a. add one electron
b. remove one proton
c. remove one electron
d. add one neutron
• e. there’s nothing that will happen