atoms revision

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

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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