atoms revision

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

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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