This is an excellent resource to teach students all the basics about what the elements are. The reading is a detailed source which discusses the periodic table, chemical symbols, atomic number, atomic mass. It also teaches students how to find the number of protons, neutrons and electrons.
This is a great reading as an introduction, or as a review for a unit on the Structure of Matter, which is part of the NGSS standard for "Structure and Properties of Matter."
There are 14 reading questions to guide the students along with the reading and are complete with teacher's answer key.