week ten

Question 1

what is the nucleus composed of

Answer 1

protons and neutrons

Question 2

what is an atom composed of

Answer 2

central nucleus and orbiting electrons

Question 3

what determines an atom’s mass number or atomic weight

Answer 3

the number of protons and neutrons

Question 4

what determines the atomic number of an atom

Answer 4

the number of protons inside the nucleus equals the number of electrons

Question 5

what shell has the highest energy level

Answer 5

k

Question 6

what is the heart of the x ray machine

Answer 6

tubehead

Question 7

what are the components of an x ray machine (9)

Answer 7

tubehead, pid, metal housing, insulating oil, tubehead seal, aluminum disk, lead collimator, cathode, anode

Question 8

tubehead seal

Answer 8

aluminum or leaded glass covering of the tubehead, seals oil in, acts as a filter for x ray beam

Question 9

aluminum disk

Answer 9

filters out nonpenetrating longer wavelength x rays

Question 10

lead collimator

Answer 10

lead plate, restricts the size of the x ray beam

Question 11

cathode

Answer 11

supplies the necessary electrons to produce x rays, negative, consist of a tungsten wire filament

Question 12

parts of a cathode

Answer 12

tungsten filament, molybdenum cup

Question 13

anode

Answer 13

positive, thin tungsten plate embedded in cooper, purpose is to convert electrons into x ray photons

Question 14

parts of anode

Answer 14

tungsten target, cooper stem