Elective. Quiz 1.
Answer the following questions.
1. Cite the difference between atomic mass and atomic weight.
2. Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In, with an atomic
weight of 114.904 amu. If the average atomic weight for In is 114.818 amu, calculate the fraction-of-occurrences of these
two isotopes.
3. Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 C vs. -85 C),
even though HF has a lower molecular weight.
4. What is the difference between atomic structure and crystal structure?
5. Niobium (Nb) has an atomic radius of 0.1430 nm and a density of 8.57 g/cm3. Determine whether it has an FCC or a BCC
crystal structure.
Elective. Quiz 1.
Answer the following questions.
1. Cite the difference between atomic mass and atomic weight.
2. Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In, with an atomic
weight of 114.904 amu. If the average atomic weight for In is 114.818 amu, calculate the fraction-of-occurrences of these
two isotopes.
3. Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 C vs. -85 C),
even though HF has a lower molecular weight.
4. What is the difference between atomic structure and crystal structure?
5. Niobium (Nb) has an atomic radius of 0.1430 nm and a density of 8.57 g/cm3. Determine whether it has an FCC or a BCC
crystal structure.
Elective. Quiz 1.
Answer the following questions.
1. Cite the difference between atomic mass and atomic weight.
2. Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In, with an atomic
weight of 114.904 amu. If the average atomic weight for In is 114.818 amu, calculate the fraction-of-occurrences of these
two isotopes.
3. Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 C vs. -85 C),
even though HF has a lower molecular weight.
4. What is the difference between atomic structure and crystal structure?
5. Niobium (Nb) has an atomic radius of 0.1430 nm and a density of 8.57 g/cm3. Determine whether it has an FCC or a BCC
crystal structure.
Elective. Quiz 1.
Answer the following questions.
1. Cite the difference between atomic mass and atomic weight.
2. Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In, with an atomic
weight of 114.904 amu. If the average atomic weight for In is 114.818 amu, calculate the fraction-of-occurrences of these
two isotopes.
3. Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 C vs. -85 C),
even though HF has a lower molecular weight.
4. What is the difference between atomic structure and crystal structure?
5. Niobium (Nb) has an atomic radius of 0.1430 nm and a density of 8.57 g/cm3. Determine whether it has an FCC or a BCC
crystal structure.
Elective. Quiz 1.
Answer the following questions.
1. Cite the difference between atomic mass and atomic weight.
2. Indium has two naturally occurring isotopes: 113In, with an atomic weight of 112.904 amu; and 115In, with an atomic
weight of 114.904 amu. If the average atomic weight for In is 114.818 amu, calculate the fraction-of-occurrences of these
two isotopes.
3. Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 C vs. -85 C),
even though HF has a lower molecular weight.
4. What is the difference between atomic structure and crystal structure?
5. Niobium (Nb) has an atomic radius of 0.1430 nm and a density of 8.57 g/cm3. Determine whether it has an FCC or a BCC
crystal structure.
