Can some one answer my question for physical science for 9th grade

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Is a chemical message sent by another individual.