Fundamentals of Materials Science and Engineering -

Chapter 2:

1. Specify the electronic structure of the following atoms or ions: Cl, Ti, Ti4+, Cr, Cr6+.

2. Specify all quantum numbers for the electrons in the 3p state in Zr. Do the same for the 4p state in Ba.

3. Without consulting a periodic table or table 2.2 in Callister, determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices.

a) 1s22s22p63s23p63d74s2

b) 1s22s22p63s23p6

c) 1s22s22p5

d) 1s22s22p63s2

e) 1s22s22p63s23p63d24s2

f) 1s22s22p63s23p64s1

4. Provide the most likely dominant bonding mechanism in the following solid compounds:

a. CaO

b. InAs

c. Al2O3

d. Bronze

5. What is the composition in weight percent of an alloy that contains 98 g tin and 65 g lead? What is the composition in atom percent?