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atoms in ratio 2:1 with bond angle of 1800 for example HCl.
the force of attraction between neutral molecules or the atoms of a monatomic gas weak forces...
Niels Bohr put forward the theory that electrons move in certain orbits about the nucleus.
the use of a catalyst to bring about the cracking of mineral oils that boil at high temperatures...
a neutral particle in the nucleus with almost the same mass as the proton.