PLEASE HELP!
number of protons + number of neutrons =

What are transitions between a liquid and gas called? identify which way they are transitioning

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals