Stages of big bang

Question 1

stage 0

Answer 1

big bang occured, time and space created, the niverse is an infinitely dense, hot and small, singularity

Question 2

stage 1

Answer 2

10^-35 seconds after the big band-
universe expands rapidly, this is inflation, no matter only high energy gamma photons and EM radiation

Question 3

stage 2

Answer 3

10^-35 - 10^-6 seconds after the big bang====

Quarks and leptons come into existence, heavier particles cannot be formed due to the high temperatures present, slightly more matter than antimatter.

Question 4

stage 3

Answer 4

10^-6 - 225 seconds after the big bang===

universe cools, protons and neutrons begin to form quarks.
matter and antimatter continue to annihilate producing huge amounts of high energy photons, these are continually absorbed and re amitted as the interact with charged particles

Question 5

stage 4

Answer 5

225 seconds to 1000 years after the big band===

universe cools, behaves like the core of a star. nuclear fusion starts to take place

neutrons and protons fuse to form light nuclei like deuterium, helium and lithium.

matter is in plasma form as temp is still so high that protons and and electrons are unbound to each other

Question 6

stage 5

Answer 6

1000 years to 3000 years after the big bang, nuclear fusion ends and electrons are formed

Question 7

stage 6

Answer 7

3000 years to 300000 years after the big bang====

universe cools, electrons bond with the formed nuclei to form atoms

Question 8

stage 7

Answer 8

300 000 years to present

after about 30 million years the first stars form, galaxies begin to form

heavy elements form billions of years later from the gravitational collapse of stars
solar system forms from a supernova nebula 9 billion years after, earth forms another 1 billions years fater