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Search Results for atomic - All Grades

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Grade 9 Atomic Structure
Grade 11 Chemistry
An atom is
  1. the smallest unit of matter that maintains its chemical identity.
  2. the smallest unit of a compouond
  3. always made of carbon
  4. smaller than an electron
Grade 9 Periodic Table and Elements
the number of protons in an atom is called
  1. atomic number
  2. atomic mass
  3. atomic weight
Grade 6 Periodic Table and Elements
Grade 8 Atomic Structure
An atom with more electrons than protons would be considered a(n)
  1. metal atom
  2. nonmetal atom
  3. ion
  4. atom of a metalloid
Grade 8 Atmosphere
The gas called ozone is composed of
  1. ozone atoms
  2. helium atoms
  3. nitrogen atoms
  4. oxygen atoms
Grade 6 Molecules and Compounds
2.) What does C2 O5 mean?
  1. 2 Carbon atoms and 5 Oxygen atoms
  2. 3 Carbon atoms and no Oxygen atoms
  3. 4 Carbon atoms and no Oxygen atoms
Grade 11 Atomic Structure
The atomic mass of an atom is
  1. the total number of protons plus neutrons
  2. the total number of protons
  3. the total number of neutrons
  4. the total number of protons plus electrons
Grade 7 Periodic Table and Elements
Grade 9 Solvents, Solutes, and Solubility
Which of the following makes up a molecule of water?
  1. one atom of hydrogen and one atom of oxygen.
  2. one atom of hydrogen and two atoms of oxygen
  3. two atoms of hydrogen and one atom of oxygen
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