Question 10 of 10

multiple choice: select the best answer and click "submit."

during a lightning storm, the jones family notices their computer has shut off. when they turn it back on, it functions properly. what should they buy to protect their computer during future lightning storms?

a. a surge protector
b. a circuit board
c. a power surge
d. a ground wire

c

explanation:

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally