I think it’s A but, don’t come at me if I’m wrong. Btw I read over it multiple times so this isn’t a random guess. Good luck tell me if you got it right
Answer:
element
Explanation:
An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. • There are about 117 elements.
A solution
Explanation: A solution is always transparent, light passes through with no scattering from solute particles which are molecule in size.
You are measuring an Intensive property
Answer:
the first energy level is closest to nuclear the second energy level is a little farther away than the first