Unit 5.4: History of periodic table reading on CK-12

Directions: Read sections 5.2 - 5.5 in the CK-12 online textbook. At the end of each section you must click the next button to move on to the next section. You should right click on the link and open in a new tab. After you have completed the reading, answer the questions below. CK-12 5.2 - 5.5

	First name Last name