Electricity
Renewable, but weather dependent. Can work day or night.
Wind power.
Positively charged subatomic particle
Proton
Has a positive charge
Cation
These elements are highly reactive
Group 1
Animal with three hearts.
Octopus
Electrons move in one direction only, used in batteries.
Direct current (DC)
Atomic number 1
Hydrogen
Has gained electrons
Anion
These elements do not react
Group 18 - Noble Gases
Animals that hold hands while sleeping.
Otters
Renewable and can work constantly. Risk of dam breaking and flooding.
Hydropower.
Electrons in an outer shell
Valence electrons
Non-metals form
Anions
What is more reactive - magnesium or copper?
Animal that can't jump.
Elephant
50 hertz
Alternating current (AC)
Mass number - atomic number =
Number of neutrons
Will chlorine form a cation or anion?
Anion
Group 1 metals become ________ reactive as you move down the group
more
Bird that can fly backwards
Hummingbird
Explain how a turbine creates electricity.
- Turbine spins magnet around a copper wire
- Magnet makes electrons in the copper wire move
- Movement of electrons = electrical current
How many metalloids are there?
7
Because they have 1-3 valence electrons they form cations
Metals
Group 17 halogens become _____ reactive as you move down the group.
Less
Best animal in the world.
Cat