Answer:
photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.
If I remember correctly, you would have to heat the reaction beaker over a burner..
I apologize if I'm wrong
Location = nucleus ,
and you can see the total charge on the number that written below the substance, which would be 28+
hope this helps
It is 20 because then you will put 30 inside of 20milimeeter and put 70 years into the other pint and put it learnt into the cup
