.11 Verizon 6:16 PM a session.masteringchemistry.com Homework Set #2 Item 11 11

Question

.11 Verizon 6:16 PM a session.masteringchemistry.com Homework Set #2 Item 11 11 of 14 Part A Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic particle or particles separated by commas Submit Part B The atomic number of fluorine is 9. What is the mass number of a fluorine atom with 8 neutrons? Express your answer as an integer View Available Hint(s) mass number Submit Part C An atom has a mass number of 30 and 16 neutrons. What is the atomic number of this atom? Express your answer as an integer View Available Hint(s) atomic number = Submit Part D 37 How many neutrons are in the nucleus of this atom? Express your answer as an integer View Available Hint(s) neutrons in CI- Submit

Explanation / Answer

A) in the nuclues of the atom , the particles found are

i) proton

ii) neutron

B)

mass number = atomic number + number of neutrons

mass number = 9 + 8

mass number = 17

C)

atomic number = mass number - number of neutrons

atomic number = 30 - 16

atomic number = 14

D)

given

atomic number = 17

mass number = 37

we know that

number of neutrons = mass number - atomic number

number of neutrons = 37 - 17

number of neutrons = 20

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