Atomic Structure

Question 1 of 12

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Negatively charged subatomic particles.

Select one of the following:

  • Proton

  • Neutron

  • Electron

  • Nucleus

Question 2 of 12

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Subatomic particle with no charge.

Select one of the following:

  • Proton

  • Neutron

  • Electron

  • Nucleus

Question 3 of 12

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Positively charged subatomic particle.

Select one of the following:

  • Proton

  • Neutron

  • Electron

  • Nucleus

Question 4 of 12

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Central dense core of an atom responsible for its mass.

Select one of the following:

  • Proton

  • Neutron

  • Electron

  • Nucleus

Question 5 of 12

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Philosopher who was among the first to suggest the existence of atoms.

Select one of the following:

  • Bohr

  • Rutherford

  • Dalton

  • Democritus

Question 6 of 12

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The mass of an electron is equal to the mass of a neutron.

Select one of the following:

  • True
  • False

Question 7 of 12

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Rutherford’s gold foil experiment proved that atoms are mostly empty space with a dense, positively charged nucleus.

Select one of the following:

  • True
  • False

Question 8 of 12

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The mass number of an atom is equal to

Select one of the following:

  • Weighted average of masses of all isotopes of an element

  • Protons plus Neutrons

  • Number of Neutrons

  • Number of Protons

Question 9 of 12

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The atomic mass of an atom is equal to

Select one of the following:

  • Weighted average of masses of all isotopes of an element

  • Protons plus Neutrons

  • Number of Neutrons

  • Number of Protons

Question 10 of 12

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An isotope of neon has a mass number of 22. How many neutrons in this isotope?

Select one of the following:

  • 22

  • 20

  • 12

  • 10

Question 11 of 12

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An isotope of lead has a mass number of 206. How many protons in this isotope?

Select one of the following:

  • 82

  • 124

Question 12 of 12

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Calculate the atomic mass of an atom with the following isotope data:
Mass : Abundance
36.00 : 75.77%
37.00 ; 24.23%

Select one of the following:

  • 36.14

  • 36.68

  • 36.48

  • 36.24

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Atomic Structure

F Kolias
Quiz by , created over 1 year ago

Explain what makes elements and isotopes different from one another Calculate the number of neutrons in an atom Calculate the atomic mass of an element Explain why chemists use the periodic table

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F Kolias
Created by F Kolias over 1 year ago
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