What is the measure how heavy something is?

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

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

If an atom has 12 protons and 13 neutrons