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Atomic Structure Questions - All Grades

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Grade 8 Atomic Structure
A(n)                 is the building block of matter.
  1. nucleus
  2. atom
  3. proton
  4. electron
Grade 6 Atomic Structure
Select all that are parts of an atom.
  1. Brain
  2. Protons
  3. Elements
  4. Electrons
  5. Nucleus
Grade 9 Atomic Structure
What are the three particles that make up an atom?
  1. protons, neutrons, and isotopes
  2. neutrons, isotopes, and electrons
  3. positives, negatives, and electrons
  4. protons, neutrons, and electrons
Grade 6 Atomic Structure
An atom has two distinct regions: the                           and the                          .
  1. nucleus; proton cloud
  2. proton; neutron region
  3. electron cloud; electrons
  4. electron cloud; nucleus
  5. None of the above
Grade 9 Atomic Structure
                is equal to the number of protons and the number of neutrons.
  1. Atomic number
  2. Ionic number
  3. Covalent number
  4. Atomic Mass
  5. Atoms
Grade 7 Atomic Structure
An ion of the element carbon has a different number of                 .
  1. protons
  2. electrons
  3. neutrons
  4. all of the above
Grade 6 Atomic Structure
The smallest particle of matter is called a/an                .
  1. atom
  2. molecule
  3. element
  4. compound
Grade 8 Atomic Structure
Kayla draws the image shown as part of her physical science homework.
Electron-Dot Diagram - Phosphorus
What did Kayla draw?
  1. Bohr model
  2. Lewis structure
  3. Molecular formula
  4. Structural formula
Grade 7 Atomic Structure
Protons have                   .
  1. negatives charges
  2. no charge
  3. positive charges
  4. no electric charge
Grade 6 Atomic Structure
All atoms are made up of
  1. protons only.
  2. neutrons only.
  3. electrons only.
  4. protons, neutrons, and electrons.
Grade 5 Atomic Structure
What makes up all matter on Earth?
  1. Oxygen
  2. Bones
  3. Atoms
  4. Neutrons
Grade 8 Atomic Structure
The mass of a neutron is
  1. about equal to the mass of a proton.
  2. much less than the mass of a proton.
  3. about equal to the mass of an electron.
  4. much less than the mass of an electron.
Grade 9 Atomic Structure
                are formed when an atom gains or loses electrons.
  1. Ions
  2. Atoms
  3. Electrons
  4. Protons
  5. Bonds
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