Chemistry Definitions

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

Clues

  • A neutron changes to a proton and an electron. The electron is then emitted. (4, 5)
  • Atoms of the same element, with the same number of protons and electrons but different numbers of neutrons (8)
  • Short wavelength, high energy electromagnetic radiation (5, 5)
  • The average mass of an atom compared to 1/12th the mass of an atom of C-12 (8, 6, 4)
  • The average mass of one formula unit relative to 1/12th the mass of an atom of C-12 (8, 7, 4)
  • The emission of 2 protons and 2 neutrons (a He nucleus) from an unstable nucleus (5, 5)
  • The number of particles in one mole of a substance: 6.02 x 10(^23) (9, 8)
  • The number of protons in the nucleus of an atom (6, 6)
  • The time taken for half the radioactive nuclei to decay (4, 4)
  • The total number of protons plus neutrons in the nucleus of an atom (4, 6)

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