Question

copper at room temperature has
about
(i) 200 free electrons
(ii) 20 x 1010 free electrons
(iii) 8.5 x 1022 free electrons
(iv) 3 x 10% free electron​

Answer 1

Answer:

please mark me brainliest

Step-by-step explanation:

3x10% is the answer

Answer 2

Answer:

corpor at room temperature has about 8.5 ×1022 electrone..

(3) is right answer