I believe it would be the sum of protons & neutrons which equals 9 amu....
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need more like a image or somthing but it might be c
An electron is found whizzing around the nucleus, so in subatomic particles.
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Drought, resulting in a 65% reduction in water levels.
Rust is an iron oxide and formed by the reaction of iron and oxygen in the presence of moisture. So the answer would be C