What level of organization is the smallest?

In each transformation of energy , some energy what?

Isotopes of the same element have differ in their

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons