chemistry

posted by .

The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?

  • chemistry -

    All right, you've got the radius of an atom. Whenever you get a problem asking for the volume, density, etc. you assume the atom is a sphere. The diameter of a barium atom would then be:

    217pm * 2 = 434pm

    Either convert 4.33mm to pm or 434pm to mm. I'll convert 4.33mm to pm:


    4.33mm * 1.0*10^9pm/1mm = 4.33 * 10^9pm

    So how many atoms with a diameter of 434pm fit in 4.33 * 10^9pm?

    4.33 * 10^9pm * 1 Ba atom/434pm = 9976959 Ba atoms

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 4.20 mm?
  2. Chemisty

    The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 1.58 mm?
  3. Chemisty

    The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 1.62 mm?
  4. Chemistry

    The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.14 mm?
  5. chemistry

    The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side to span a distance of 4.90 mm?
  6. chemistry

    The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 4.47 mm?
  7. chemistry

    The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 4.53 mm?
  8. chem

    The radius of a iron atom is 124 pm. How many iron atoms would have to be laid side by side to span a distance of 1.75 mm?
  9. chemistry

    The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 3.20 mm?
  10. chemistry

    The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.66 mm?

More Similar Questions