Q6 of 56 Page 83

Which of the following represents 14 u?

1/12^th of mass of C-12 atom represents 14u. One atomic mass unit is a mass unit equal to one atom of carbon-12.

In a compound such as water, the ratio of the mass of hydrogen to the mass of oxygen is always:

Which of the following postulates of Dalton’s atomic theory is challenged by the next generation scientists?

The symbols of calcium, carbon and copper are:

The unit accepted for taking mass of atom and molecule is: