In a metal crystal, describe the difference between “core electrons” and “valence electrons”

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 are the 4 phases of matter in order of increasing engery content?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.