Radiation and their Uses

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I O N Q I L O G A T S L N U L M Y R U D Q
G M V G A A Q J I O L O A F A U C L D R S
V Q I L I F U N I F R W J V K I X K V K W
Q I T A B O Y L J T Q F F X X N T S X U V
Q J Q T Q P E O C H F V I Q S I S G G A H
O W P H Y T A E P F G P N O Y M S B H C W
W C D P J U L L D S A T I H X U R M K V C
E A X P Q E H T C L K T C E R L G W E R H
S H J S W U I H J P E I L Q S A T Q F U U
C P I L E V Y W V R A D O N G A S S K U W
N L K H D S G F G A M M A A N D B E T A O
J A J F V A V G O O D I O N I S E R S H C
O U Y N L O F U S F N T R U C W Q H S X A
U A P T I F S Q V Y Q T O Y C K A H C C M
Q P O H S P W R T Q B U N S T A B L E E T
S S Q W E O N J V L P V L R C A N C E R B
K W P E W J L Q T D K Y C F N N Q V I M V
Q H F Y Q R R O C K S L C U J F L H M P Y
H P L N K K U V X L D Q G J K V B M A V C
H I J T U H Q X M Y R I O Y V E V J U R S
V D R C K Y R H B A U L D K H B D Q B V X

Clues

  • ----- --- ---- are good tracers (5, 3, 4)
  • 51% of background radiation comes from ----- --- (5, 3)
  • A beta particle is a fast moving -------- (8)
  • Alpha particles are ---- -------- (4, 8)
  • An ----- particle consists of two protons and two electrons (5)
  • Background radioactivity includes the Earth's ----- (5)
  • Beta electrons can be stopped by a sheet of --------- (9)
  • Gamma rays can be used to treat ------ (6)
  • Radioactivity comes from an -------- nucleus (8)

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