Want to see correct answers?
Login or join for free!

Search Results for atoms - All Grades

1379 questions match "atoms". Refine Your Search

Select questions to add to a test using the checkbox above each question. Remember to click the add selected questions to a test button before moving to another page.

Previous Page 1 of 69 Next
Grade 8 Atmosphere
The gas called ozone is composed of
  1. ozone atoms.
  2. helium atoms.
  3. nitrogen atoms.
  4. oxygen atoms.
Grade 9 Periodic Table and Elements
What are the number of protons in an atom called?
  1. atomic number
  2. atomic mass
  3. atomic weight
Grade 6 Molecules and Compounds
What does [math]C_2O_5[/math] 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
  4. 5 carbon atoms and 2 oxygen atoms
Grade 9 Atomic Structure
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 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
  4. two atoms of hydrogen and two atoms of oxygen
Grade 8 Periodic Table and Elements
The number of protons has the same value as
  1. the atomic mass.
  2. the atomic number.
Grade 9 Chemistry
A molecule of dinitrogen tetroxide contains
  1. two nitrogen atoms and two oxygen atoms.
  2. four nitrogen atoms and two oxygen atoms.
  3. two nitrogen atoms and four oxygen atoms.
  4. four nitrogen atoms and four oxygen atoms.
Grade 9 Biochemistry
Which combination of atoms make 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
  4. two atoms of hydrogen and two atoms of oxygen
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
Grade 7 Molecules and Compounds
Which of the following choices sequences the parts of matter from smallest to largest correctly?
  1. atom -> element -> compound
  2. atom -> compound -> element
  3. element -> atom -> compound
  4. element -> compound -> atom
Grade 10 Chemistry
Grade 10 Bonds and Mixing
Which of the following occurs when sodium and chlorine bond together to form sodium chloride?
  1. A chlorine atom donates an electron to a sodium atom.
  2. A chlorine atom donates a proton to a sodium atom.
  3. A chlorine atom accepts a proton from a sodium atom.
  4. A chlorine atom accepts an electron from a sodium atom.
Grade 7 Periodic Table and Elements
Grade 12 Periodic Table and Elements
Previous Page 1 of 69 Next
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.