SCIENCE : A discussions group discussion

Have you ever wondered how old are the atoms that make up every bit of your body ???? maybe , the same age as you ? or 1000 years ??

I think they are just as old as we are.

WRONG...so what you are saying is , you are made out of freshly prepared atoms . Thats not possible my friend . because Matter cannot be created nor destroyed (Conservation of matter)

Wrong Alok. Matter can be created or destroyed, it's happening every day. Energy can't.
But I agree that the atoms in our body are probably as old as the earth.

I agree my friend , But what you are saying is our atoms are old as earth which means our atoms were born when the earth was created . I have a question , wasn't earth created only by trillions of modified Hydrogen atoms which in turn were created right after Big bang ?

When the universe started some 14 billion years ago it was mostly lighter elements such as hydrogen and helium, the primary constituents of stars. Heavier elements such as carbon did not come until later when star death/collapse forged heavier elements in super nova explosions. This carbon made its way to earth and our bodies, which also have hydrogen in the form of water. So conceivably the hydrogen in our bodies could be 14 billion years old.

That what i was telling , ....i remember reading a book describing Supernovas as the LIGHT OF CREATION . So according to the question Indeed atoms in our bodies are around 13.5 Billion years old .......

Well, a little less old than the big bang, because atoms only became possible some 300,000 years afterwards. Until then it was simply too hot.
So some hydrogen and helium atoms may be nearly as old as the universe.

I Agree Dokusha.