Question

Why is helium in earths crust?

Answer 1

It's a product from the decay of uranium

Answer 2

Thanks man. Figured it out myself a bit ago, but it is nice knowing people care :P

Answer 3

haha no problem, yeah sometimes it takes awhile to get an answer lol

Answer 4

If I bombard you with a few more question in a bit, you available?

Answer 5

i might be, can't promise anything though

Answer 6

What is the charge on the subatomic particles represented in figure 4-3? Assuming all the particles in the nucleus are visible, what are the atomic and mass numbers of the atom shown?