atoms revision

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

Clues

  • ... are not part of the nucleus (9)
  • ... are smaller than atoms (7)
  • atoms are bigger than ... (8)
  • electrons have a ... charge (8)
  • Nucleon is a collective name for two ..., the neutron and proton (9)
  • protons and neutrons are part of the ... (7)
  • protons have a ... charge (8)
  • Subatomic particles are found inside ... (5)

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