how were the light elements formed during the big bang and what evidence supports this?
Answer (1)
Answer:Light elements like hydrogen, helium, and small amounts of lithium were formed just minutes after the Big Bang in a process called Big Bang nucleosynthesis. During this time, the universe was extremely hot and dense, allowing protons and neutrons to combine and form these light elements before the universe cooled down.Evidence that supports this includes:1. The abundance of light elements – Observations show that about 75% of the universe is hydrogen and about 25% is helium, which matches the predicted amounts from Big Bang theory.2. Cosmic Microwave Background (CMB) – This faint glow left over from the Big Bang shows temperature patterns that support the early formation of light elements.3. Consistency with models – Computer models of the early universe match the observed amounts of hydrogen, helium, and lithium in space.
