17. Jamil's bicycle is made of aluminum. When are the aluminum molecules in his bicycle moving?
The aluminum molecules are...
only moving when Jamil is riding his bicycle.
6 only moving when Jamil is not riding his bicycle.
always moving
d never moving
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11

Always moving

Explanation:

unless temperature is at 0° Kelvin molecules are are always in motion

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.