'This element's isotope 235 has a half-life of about 700 million years'
uranium
HOW CAN WE MISS YOU IF YOU NEVER LEAVE?: This elements isotope 235 has a half-life of about 700 million years
This element's isotope 235 has a half-life of about 700 million years
This element's isotope 235 has a half-life of about 700 million years
HOW CAN WE MISS YOU IF YOU NEVER LEAVE?
uranium
HOW CAN WE MISS YOU IF YOU NEVER LEAVE?