How do black holes form?

Black holes are basically a region of space time where gravity pulls anything towards the black hole even light can't escape therefore to be able escape it we have to be faster than light. Well lets get to the point, black holes are initially formed through stars which have a mass 5 times more than the sun. New born stars have a core of the particle hydrogen which gets fused with other hydrogen particles creating helium and helium fuse to an other element as they go through the periodic table. This continues till iron becomes the core. Since, iron can't fuse they instead collide with each other and gravity also helps iron particles compress and create a black hole.

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