2. Silversmiths are warned to limit their exposure to silver in the air to 1 x 10-8 g Ag/L of air in a 40 -hour week. What is the allowed exposure in terms of atoms of Ag/l/week? 3. Myocardial perfusion imaging (MPI) is the latest tool used in the detection of coronary artery disease. I t uses thalium-201 chloride. How many neutrons are in seventy atoms of thalium-201? 4. The atomic mass of copper is 63.55 amu. There are only two isotopes of copper, Cu-63 with a mass of 62.93 amu and Cu-65 with a mass of 64.93 amu. What is the percentage abundance of each of these two isotopes? 5. A cylindrical piece of pure copper (d= 8.92 g/cm3) has diameter 1.15 cm and height 4.00 inches. How many atoms are in that cylinder? (Note: the volume of a right circular cylinder of radius r and height h is V = pi r2h).
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
2. Silversmiths are warned to limit their exposure to silver in the air to 1 x 10-8 g Ag/L of air in a 40 -hour week. What is the allowed exposure in terms of atoms of Ag/l/week?
3. Myocardial perfusion imaging (MPI) is the latest tool used in the detection of coronary artery disease. I t uses thalium-201 chloride. How many neutrons are in seventy atoms of thalium-201?
4. The atomic mass of copper is 63.55 amu. There are only two isotopes of copper, Cu-63 with a mass of 62.93 amu and Cu-65 with a mass of 64.93 amu. What is the percentage abundance of each of these two isotopes?
5. A cylindrical piece of pure copper (d= 8.92 g/cm3) has diameter 1.15 cm and height 4.00 inches. How many atoms are in that cylinder? (Note: the volume of a right circular cylinder of radius r and height h is V = pi r2h).
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