Question 1
An interstitial alloy contains hydrogen in half of the tetrahedral holes of a closest-packed metal, M. What is the formula of this alloy?
◦ MH
◦ M
4H
◦ M
2H
◦ MH
4◦ MH
2Question 2
An interstitial alloy contains carbon in one-fourth of the octahedral holes of a closest-packed metal, M. What is the formula of this alloy?
◦ M
2C
◦ MC
4◦ M
4C
◦ MC
2◦ MC