Upon experimentation in your secret underground laboratory, you have determined that substance X has developed new properties and it's chemical composition is
different.

In your lab report, you would conclude that this is a?

(Physical Change)
(Chemical Change)
(Physical Property)
(Chemical Property)

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.