Do atoms have a definite boundary, as suggested by Bohr's model'?

Why do solids have a definite volume ?

The Bohr's model of atoms:

Do the gases have a definite shape and a fixed volume?

Do solids have definite shape and fixed volume ?

Bohr's model can explain

What are the failures of Bohr's model of atom ?

How the atomic model suggested by Bohr explains the stability of atom ?

Write the postulates of Bohr's model of hydrogen atom. What are the limitations of Bohr's model of an atom ?

In Bohr model of atom :

Give the main postulates of Bohr's model of an atom.