Sheet # 50/Atom
Name: _____________________ Date_____________
Express all answers in scientific notations.
1) Each of us is made of a very large number of atoms. Each atom has the diameter of 0.000,000,01 cm. Write the diameter in scientific notation.
2) What is the radius of an atom?
3) There are 1023 atoms in a cubic cm. How many atoms are there in one cubic meter?
4) There are 1023 atoms in a cubic cm. There are 1028 atoms in our bodies. There are _____________ times more atoms in my body than in one cubic cm.
5) The diameter of a hydrogen atom is about 0.000,000,08 cm. Express it in scientific notation.