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Atomic Structure Questions - All Grades

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Grade 8 Atomic Structure
Atoms consist of which of the following?
  1. Protons
  2. Molecules
  3. Neutrons
  4. Electrons
Grade 6 Atomic Structure
Grade 6 Atomic Structure
Grade 8 Atomic Structure
Compared to the charge and mass of a proton, an electron has
  1. the same charge and a smaller mass.
  2. the same charge and the same mass.
  3. opposite charge and smaller mass.
  4. opposite charge and the same mass.
Grade 6 Atomic Structure
Grade 9 Atomic Structure
Why does an atom have no net electric charge?
  1. Its subatomic particles carry no electrical charge.
  2. The positively charged protons cancel out the negatively charged neutrons.
  3. The positively charged neutrons cancel out the negatively charged electrons.
  4. The positively charged protons cancel out the negatively charged 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 7 Atomic Structure
Matter is made up of                .
  1. atoms
  2. cells
  3. phospholipids
  4. sulfides
Grade 7 Atomic Structure
A neutral atom becomes a positive ion when it
  1. gains an electron.
  2. gains a proton.
  3. loses an electron.
  4. loses a proton.
Grade 6 Atomic Structure
Select all that are parts of an atom.
  1. Brain
  2. Protons
  3. Elements
  4. Electrons
  5. Nucleus
Grade 8 Atomic Structure
A particle that cannot be broken down further is a(n)
  1. compound.
  2. mixture.
  3. element.
  4. atom.
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
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