Key Question #6 - view of bones and organs. The CAT-scan...

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Lesson 6 Key Questions 25) a) Beryllium d) Phosphorus b) Nitrogen e) Helium c) Magnesium 26) a) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 b) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 4 c) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 3 e) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 7 f) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 6 7s 2 5f 3 27) a) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 b) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 3 c) 1s 2 2s 2 2p 6 3s 2 3p 6 d) 1s 2 2s 2 2p 6 e) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 1 f) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5 28) a) There are 7 nodal surfaces (n=1 to n=7) b) There are 5 nodal surfaces (n=2 to n=6)
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29) The first ionization energy is much smaller because as you remove electrons the protons in the nucleus will have a stronger attraction to the outer electron(s). It is increasingly harder to remove electrons as they get closer to the nucleus. 29A) a) A similarity between the conventional x-rays and CAT-scans are they both use x-ray photons. A normal x-ray only takes a few minutes whereas a CAT-scan takes at least 15 minutes. b) The conventional x-ray shows us the outlines or a two-dimensional
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Unformatted text preview: view of bones and organs. The CAT-scan goes even further as it can give us a three-dimensional view of bones and organs. The CAT-scan also can pin-point specific areas or cut sections into slices. The CAT-scan is has a higher resolution which means differences in tissue densities can be distinguished. Doctors now are able to see small nodules or tumours which they could not see using x-rays. Computer tomography (CT) technology is also used outside of the medical industry today:-Screening luggage bags at airports.-Scanning diamonds to determine value before cutting.-Scanning food for foreign particles or dense material.-Scanning logs for the timber industry for grain patterns or defects.-Border patrol screening of oversees containers....
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This note was uploaded on 12/13/2009 for the course ENGG eg 404 taught by Professor Weisenhaupt during the Spring '09 term at University of the Bío-Bío.

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Key Question #6 - view of bones and organs. The CAT-scan...

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