Waste materials, mining and transportation of radioactive fuels, radiation emissions from nuclear sites
For one a homogenous mixture cannot be separated using filtration. Hope this helps:)
Answer:
Inside the nucleus, the attractive strong nuclear force between protons outweighs the repulsive electromagnetic force and keeps the nucleus stable. Outside the nucleus, the electromagnetic force is stronger and protons repel each other.
Explanation:
It has 2 valence electrons
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