The first part of two is heat, not temperature, once that is cleared up: starting from 3: temperature, concentration, collisions, catalytic converter, surface area
will tell you the subshell type, so you are dealing with a d orbital.
ml will tell you the orientation of the orbital, there is no distinction between the orbitals so -1 doesnt specifically mean anything.
The statement "Liquid petrol does not ignite spontaneously in air" is true. It needs a light nenergy or a spark for the combustion reaction to occur. Without it, it would not ignite <span>spontaneously in air</span>
Helium has the highest boiling point
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral