NumicornNumicornLearn, solve, progress

Atomic Structure Practice Tests

These Grade 10 Science practice tests develop understanding of atomic models, protons, neutrons, electrons, atomic number, mass number, isotopes, ions, electron arrangements, energy levels, and atomic spectra.

Skills covered

  • Identifying the nucleus, protons, neutrons, electrons, atomic number, mass number, and neutral atoms
  • Calculating protons, neutrons, electrons, isotope mass numbers, and ion charges
  • Using valence electrons, energy levels, orbitals, Bohr models, electron clouds, and simple electron arrangements
  • Explaining ground states, excited states, photons, emission spectra, wavelength, frequency, and flame tests
  • Comparing Dalton, Thomson, Rutherford, Bohr, and modern quantum models of the atom

How to use these practice tests

Start with the atomic number and charge. Count protons, neutrons, and electrons carefully, then connect electron arrangement to energy, bonding, periodic position, and chemical behavior.

For more Grade 10 Science practice, return to the Grade 10 Science category.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

2. Test

Grade 10 Atomic Structure Practice Tests

Practice Grade 10 Science questions about atomic models, protons, neutrons, electrons, atomic number, isotopes, ions, electron arrangements, energy levels, and spectra.

Choose the best answer. Use atomic number, mass number, charge, electron arrangements, energy levels, and atomic models to evaluate each question.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What do electrons in the same principal energy level have in common?

Please select an answer first.

Correct answer: A

The correct answer is They occupy regions with similar average energy around the nucleus..

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: Principal energy levels describe broad regions of electron energy and distance from the nucleus.
  3. Check the calculation or relationship: The correct answer is They occupy regions with similar average energy around the nucleus..

Principal energy levels describe broad regions of electron energy and distance from the nucleus.

2. QuestionMultiple choice

What are valence electrons?

Please select an answer first.

Correct answer: B

The correct answer is Electrons in the outermost occupied energy level.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: Valence electrons are the outer electrons most involved in chemical bonding and reactivity.
  3. Check the calculation or relationship: The correct answer is Electrons in the outermost occupied energy level.

Valence electrons are the outer electrons most involved in chemical bonding and reactivity.

3. QuestionMultiple choice

Why do elements in the same group often have similar chemical behavior?

Please select an answer first.

Correct answer: C

The correct answer is They have similar patterns of valence electrons..

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: Similar valence-electron arrangements lead to related bonding and reactivity patterns.
  3. Check the calculation or relationship: The correct answer is They have similar patterns of valence electrons..

Similar valence-electron arrangements lead to related bonding and reactivity patterns.

4. QuestionMultiple choice

Which electron arrangement represents a neutral atom with atomic number 10 in a simple shell model?

Please select an answer first.

Correct answer: D

The correct answer is [2, 8].

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: A neutral atom with 10 electrons fills the first shell with 2 and the second shell with 8.
  3. Check the calculation or relationship: The correct answer is [2, 8].

A neutral atom with 10 electrons fills the first shell with 2 and the second shell with 8.

5. QuestionMultiple choice

What does a Bohr model represent?

Please select an answer first.

Correct answer: A

The correct answer is Electrons arranged in specific energy levels around a nucleus.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: The Bohr model places electrons in quantized shells or energy levels around the nucleus.
  3. Check the calculation or relationship: The correct answer is Electrons arranged in specific energy levels around a nucleus.

The Bohr model places electrons in quantized shells or energy levels around the nucleus.

6. QuestionMultiple choice

What is an atomic orbital?

Please select an answer first.

Correct answer: B

The correct answer is A region where an electron is likely to be found.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: Modern atomic models describe orbitals as probability regions rather than fixed circular paths.
  3. Check the calculation or relationship: The correct answer is A region where an electron is likely to be found.

Modern atomic models describe orbitals as probability regions rather than fixed circular paths.

7. QuestionMultiple choice

How many electrons can occupy one orbital at most?

Please select an answer first.

Correct answer: C

The correct answer is 2.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: An orbital can hold up to two electrons with opposite spins.
  3. Check the calculation or relationship: The correct answer is 2.

An orbital can hold up to two electrons with opposite spins.

8. QuestionMultiple choice

How many electrons can the first principal energy level hold?

Please select an answer first.

Correct answer: D

The correct answer is 2.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: The first energy level contains one orbital, and that orbital can hold two electrons.
  3. Check the calculation or relationship: The correct answer is 2.

The first energy level contains one orbital, and that orbital can hold two electrons.

9. QuestionMultiple choice

How many electrons can the second principal energy level hold in the basic shell model?

Please select an answer first.

Correct answer: A

The correct answer is 8.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: The second level includes one s orbital and three p orbitals, for a total capacity of eight electrons.
  3. Check the calculation or relationship: The correct answer is 8.

The second level includes one s orbital and three p orbitals, for a total capacity of eight electrons.

10. QuestionMultiple choice

What is the electron cloud model?

Please select an answer first.

Correct answer: B

The correct answer is A model that shows probable locations of electrons around the nucleus.

  1. Identify the atomic quantity: Determine whether the question asks about the nucleus, subatomic particles, atomic number, mass number, charge, electrons, or energy levels.
  2. Use the atomic model: The electron cloud represents the probability distribution of electron locations.
  3. Check the calculation or relationship: The correct answer is A model that shows probable locations of electrons around the nucleus.

The electron cloud represents the probability distribution of electron locations.

Previous testNext test