Home / ►My courses / ►BIOL 1121 - AY2020-T1 / ►5 September - 11
September / ►Self-Quiz Unit 1
Started on Wednesday, 11 September 2019, 9:05 PM
State Finished
Completed on Wednesday, 11 September 2019, 9:12 PM
Time taken 6 mins 46 secs
Marks 7.00/10.00
Grade 70.00 out of 100.00
BIOL 1121 Biology 1 for Health Studies - Term 1, 2019-
2020
Home / ►My courses / ►BIOL 1121 - AY2020-T1 / ►5 September - 11
September / ►Self-Quiz Unit 1
Started on Wednesday, 11 September 2019, 9:05 PM
State Finished
Completed on Wednesday, 11 September 2019, 9:12 PM
Time taken 6 mins 46 secs
Marks 7.00/10.00
Grade 70.00 out of 100.00
Question 1
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Question text
If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it
have?
Select one:
a. 54
b. 27
c. 100
d. 108
Feedback
The correct answer is: 54
Question 2
Correct
This study source was downloaded by 100000836386117 from CourseHero.com on 01-17-2022 13:22:40 GMT -06:00
Question text
Atoms that vary in the number of neutrons found in their nuclei are called __________.
Select one:
a. ions
b. neutrons
c. neutral atoms
d. isotopes
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The correct answer is: isotopes
Question 3
Correct
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Question text
Potassium has an atomic number of 19. What is its electron configuration?
Select one:
a. shells 1 and 2 are full, and shell 3 has nine electrons
b. shells 1, 2 and 3 are full and shell 4 has three electrons
c. shells 1, 2 and 3 are full and shell 4 has one electron
d. shells 1, 2 and 3 are full and no other electrons are present
Feedback
The correct answer is: shells 1, 2 and 3 are full and shell 4 has one electron
Question 4
Correct
Mark 1.00 out of 1.00
This study source was downloaded by 100000836386117 from CourseHero.com on 01-17-2022 13:22:40 GMT -06:00
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