by Kimberly serrano calva

positive charge, inside nucleus, mass of 1 AMU

neutral, in the nucleus, mass of 1 AMU

negative charge, outside nucleus, no mass 

tells how many protons and neutrons in an element.

verticle numbers on the periodic table 

horizontal rows on the periodic table

same element, different mass, same protons and neutrons

substance that is not metal

element with properties between non metal and metal

abbreviation for the element.