The flow of charge.
Current.
The reactivity of GroupName elements increases as you go down the group
The trend of group one?
A ...meter is a certain device that measures ..l.s
A voltmeter is a certain device that measures volts.
Chlorine.
What is a group 7 element?
A ... is a circuit with more than two paths to flow.
A parallel circuit is a circuit with more than two paths to flow.
The reactivity decreases down the group.
Halogens?
If a bulb breaks, it leaves you with a broken circuit.
What happens when you lose a bulb in a series circuit?
A parallel circuit has more than two paths to flow, but a series circuit only has one.
Difference between a parallel circuit and a series circuit