Can you attempt building models of biomolecules using commercially available atomic models (Ball and Stick models).

What is the nuclear model of atom?

Write two limitations of Bohr’s atomic model.

Write three differences between rugherford's atomic model and Bohr's atomic model.

Why can the spectral lines of hydrogen atom not be explained by Rutherford's atomic model ?

In bohr's models of atom the lowest angular momentum, that an electron may have is-

State two postulates of Bohr atom model

Which model does not be able to explain the stability of an atom?

What is the principal defect of Bohr atom model?

(Manufacturing problem): A manufacturing company makes two models A and B of a product. Each piece of Model A requires 9 labours for fabricating and 1 labour hour for finishing. Each piece of Model B requires 12 labour hours for fabricating and 3 labour hours for finishing. For fabricating and finishing the maximum labour hors available are 180 and 30 respectively. The company makes a profit of Rs. 8000 on each piece of model Aand Rs. 12000 on each piece of Model B. How many piecesof Model A and Model B should be manufactured per week to realise a maximum profit? What is the maximum profit per week?

In Bohr’s model of atom the lowest angular momentum, that an electron may have is