Atoms and Molecule
An atom contains 14 protons and 16 neutrons. What is its mass number?
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Which of the following is the chemical formula of sodium chloride?
Calculate the mass of contained in mole of.
According to the Dalton's atomic theory all matter is made of tiny particles called ________.
Which of the following is incorrect statement for the atoms?
The isotopes contain the same number of____ and different number of______.
Which one of the following was not explained in Rutherford's nuclear model of atom?
The number of atoms of oxygen present in 24 g of oxygen gas is:
Calculate the mass of water which contains the same number of molecules as are contained in 60 g of oxygen.