What is a mass defect? A. The amount of mass missing from a nucleus when compared with the sum of its parts
B. The amount of mass lost as subatomic particles in a nuclear reaction
C. The error in atomic mass measurement due to electron contributions
D. Too much mass gained in a nucleus as a result of nuclear fusion ​

idk

explanation:

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons