The idea of stationary orbit was first given by?
Which one of the following has the maximum number of isotopes ?
moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?
Which of the following terms is not used for ionic compound ?
The number of isotopes of elements with even mass number and even atomic number are ________________?
One mole of CO2 contains?
Which of the following statements about isotopes is correct ?
Molecular mass of water (18g) means__________________?
Empirical formula of chloroform is____________________?
The number of peaks obtained in mass spectrometry shows____________________?
