I choose the option A.
The electron absorbs energy from specific wavelength then moving from a lower energy orbital to a higher energy orbital.
Answer:
6, double
Explanation:
Hex- is a prefix for number 6.
Ene- is a suffix for a double bond.
Some minerals tend to look alike.
This equation is impossible. NaSO4 is non-existent. Did you mean Na2SO4?
