Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid? Lavoisier and Mendeleev
Döbereiner and Newlands
Newlands and Mendeleev
Lavoisier and Döbereiner

Use the table to answer question 22 23 and 24.

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.

What types of radiation make up the electromagnetic spectrum?