The no. of aluminum atoms touching their neighbors would make a straight line 550 n m long has to be calculated. Using this result, why an optical microscope using visible radiation will never be able to detect an individual aluminum atom has to be explained. Concept Introduction: The wavelength of visible radiation is 700 n m . The distance between repetitive atoms needs to be the same as the wavelength of radiation used to view that particular atom.

Question

Read this excerpt. Metallic antimony is an extremely brittle metal of a flaky, crystalline texture. It is bluish white and has a metallic lustre. It burns brilliantly when heated with the formation of white fumes. Antimony is used in semiconductor technology for making infrared detectors. In the excerpt, the author of the source provides information that answers which of the following research questions? Responses What is antimony? What is antimony? What gives antimony its color? What gives antimony its color? What gives antimony its flaky, crystalline texture? What gives antimony its flaky, crystalline texture? What happens to antimony when exposed to air at room temperatures?

Answer 1

Question

Chapter 9, Problem 72QRT

Interpretation Introduction

Interpretation:

The no. of aluminum atoms touching their neighbors would make a straight line 550 nm long has to be calculated. Using this result, why an optical microscope using visible radiation will never be able to detect an individual aluminum atom has to be explained.

Concept Introduction:

The wavelength of visible radiation is 700 nm. The distance between repetitive atoms needs to be the same as the wavelength of radiation used to view that particular atom.

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Read this excerpt. Metallic antimony is an extremely brittle metal of a flaky, crystalline texture. It is bluish white and has a metallic lustre. It burns brilliantly when heated with the formation of white fumes. Antimony is used in semiconductor technology for making infrared detectors. In the excerpt, the author of the source provides information that answers which of the following research questions? Responses What is antimony? What is antimony? What gives antimony its color? What gives antimony its color? What gives antimony its flaky, crystalline texture? What gives antimony its flaky, crystalline texture? What happens to antimony when exposed to air at room temperatures?

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Copper (Cu) has an fcc structure, where the mass of a Cu atom is 63 in atomic mass units.The density of Cu is 8.9×103 kgm−3.Tungsten (W) typically has a bcc structure, where the mass of a W atom is 184 in atomicmass units. The density of W is 19.3×103 kgm−3.(i) Use the above data to find the radius of a Cu atom, and of a W atom.(ii) Which atom has the larger radius, and why?You may use the fact that 1 atomic mass unit is equivalent to 1.66 × 10−27 kg.