Answer;
Chlorine is an element while carbon (iv) oxide is a compound.
Explanation;
-An element is a pure substances that is made up of similar types of atoms. Elements unlike compounds can not be divided into simpler forms using chemical means. Examples of elements include; potassium, chlorine, helium, sodium, etc.
-Compounds on other hand are substances that contain more than one atom from different element that are combined together chemically. The atoms in a compound are in a fixed ratio. Compounds can be divided into simpler forms using chemical means. Example of compounds include; carbon (iv) oxide, water, etc.
Pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing<span> medium into a spectroscope</span>
