the original elements change into completely different elements

the electrons of the element change

the molecules rearrange themselves to form other molecules

none of the above.

greater than 1.0

less than 1.0

equal to zero

equal to 1.0

1 neutron

1 — neutrons

1 - 2 neutrons

2 — neutrons

enriched uranium

plutonium

thorium

U235

enriched uranium

plutonium

thorium

U