You Would Need A(n) Blacklight Or AKA UV Light
Unstable nuclei split up in a process<span> called </span>radioactive decay<span> and emit </span>radioactive radiation<span>. You need to know the effect of alpha and </span>beta decay<span> on the nucleus. The nucleus of an atom can be represented as: ... A = </span>atomic<span> mass (number of protons + neutrons)
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Alfred Wegener came up with the idea
I think it’s (D) pressure