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What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

Which metal exist in liquid state and can be cut with knife ?

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false