The number of protons in an atom of an element always equals its atomic weight.
a. true
b. false

B.False
the number of protons in an atom is equal to the atomic number

B because it the atomic number to use in a dot structure for its valence electrons

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Sorry i dont understand the question can you rephase it?