A. Gold and Platinum
B. Cobalt and Chromium
C. Gold and Calcium
D. Tin and chromium
Correct Answer: Gold and Calcium ✔
Last Updated: February 07, 2020
A. Gold and Platinum
B. Cobalt and Chromium
C. Gold and Calcium
D. Tin and chromium
Correct Answer: Gold and Calcium ✔
Last Updated: February 07, 2020