elements, atoms etc...

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

Clues

  • a group of two or more atoms strongly joined together (8)
  • a positively charged particle that is located at the center of the atom in the nucleus (6)
  • a substance made up of atoms of two or more elements strongly joined together (8)
  • a substance that cannot be broken down into other substances (7)
  • an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus (7)
  • an elementary particle with negative charge (8)
  • the smallest part of an element that can exist (4)

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