C1- Atomic Structure + periodic Table Flashcards
What is relative mass of protons
1
What is relative charge of protons
+1
What is relative mass of neutrons
1
What is the relative charge of neutrons
0
What is the relative mass of electrons
Very small
What is relative charge of electrons
-1
What are isotopes?
Have the same number of protons but a different number of neutrons
What are the 4 methods to separate a mixture
Filtration, crystallisation, distillation and chromatography
Who created plum pudding model?
J J Thomson
What is the electron shell rule?
1st shell - 2
2nd shell - 8
3rd shell - 8
Who proved that the plum pudding model was wrong?
Ernest Rutherford
What is the trends of alkali metals as you go down
Increasing reactivity
Lower mp and bp
Higher relative atomic mass
What are halogens
Non metals with coloured vapours
What does fluorine produce
Yellow gas
What does chlorine produce
Dense green gas
What does bromine produce
Red-brown volatile liquid
What does iodine produce
Purple vapour
What are the trends of halogens as you go down
Less reactive
Higher mp and bp
Higher relative atomic mass
