Sodium (Na) is very reactive because it does not have a full valence shell.
- neon signs
- fireworks
- rockets during the ascent
- meteors
- fireflies
- stars
Deposition:
- when a gas changes directly to a solid
- latent heat is released
- physical change, NOT a chemical change
The power delivered is equal to the product between the voltage V and the current I:

This power is delivered for a total time of

, so the total energy delivered to the battery is
If your machine has a mechanical advantage of 2.5, then WHATEVER force you apply to the input, the force at the output will be 2.5 times as great.
If you apply 1 newton to the machine's input, the output force is
(2.5 x 1 newton) = 2.5 newtons.
If you apply 120 newtons to the machine's input, the output force is
(2.5 x 120 newtons) = 300 newtons.