GoConqr has a new look! Let us know what you think.

Sign up free

Flashcards

chemistry flashcards

mamemor seck Chemistry GCSE English 44 cards

Cards in this deck (44)

  1. 1how do you calculate neutron?proton - electron
  2. 2what is a positive ion called?cations
  3. 3what is a negative ion called?anion
  4. 4which is on the top atomic number r mass number?mass number bottom
    atomic number top
  5. 5what happens if an element isn't neutral?it forms an ion
  6. 6what is an ionic compound?2 oppositely charged ions that held together by an attractive force(negative and positive)
  7. 7what are molecules?2 or more atoms held together by chemical bonds?
  8. 8what are compounds?2 or more element held together by chemical bonds
  9. 9what are mixtures?2 or more substances that are not held together by chemical bonds.
  10. 10Why is aluminium positioned in Group 3 of the periodic table?it has 3 electrons on its outer shells.
  11. 11The melting point of oxygen is -218°C and its boiling point is -183°C. Predict the state of oxygen at -200°C.liquid state.
  12. 12what happens if the given temp is lower than the melting point?the predicted state will be solid
  13. 13what happens if the given temp is between the melting point and the boiling point?the predicted state will be liquid
  14. 14what happens if the given temp is higher than the boiling point?the predicted state will be gas
  15. 15what are the groups in the periodic table?the vertical column on the periodic table.
  16. 16what is a group on the periodic table?the vertical column on the periodic table
  17. 17what are periods on the periodic table?the horizontal column on the periodic table.
  18. 18which group are the alkali metals found?group 1
  19. 19which group are the alkali earth metals found?group 2
  20. 20which other groups are metals also found on the periodic table?group 3 to 11
  21. 21where are the non-metals found on the periodic table?group 17
  22. 22where on the periodic table are the noble gases found?group 18
  23. 23state one key feature of metals on the periodic table?they can form ions
  24. 24true or false : non-metals can form ions.false they can only make negative ions
  25. 25what happens if the nucleus is far away from the outer shell?it is easier for the electrons on the outer shell to be lost and form a positive ion.
  26. 26name 2 physical property of metal?-high melting and boiling point
    -great conductors of heat
  27. 27name 2 physical property of non-metal?-easy to break
    -low melting and boiling point
  28. 28where are the transition metals found on the periodic table?in the centre
  29. 29name one extra property of a transition metal?they can form more than 1 ion
  30. 30why is transition metal Great catalysts?increasing the rate of a chemical reaction without being used up themselves
  31. 31Going down Group 7 the melting points........... This is because the size of the molecules increases so the intermolecular forces............-increases
    -increases
  32. 32why are alkali metals so reactive?they only have one electro n on the outer shell so they lose it to react
  33. 33what happens as you go down group 7 (halogens)-melting and boiling point increases
    -reactivity decreases
  34. 34what is a displacement reaction?when a more reactive element displaces a less reactive one
  35. 35what happens as you go down group 0-melting and boiling point increases
  36. 36why are elements in group zero non-flammable?they have a full outer shell so they can't react to anything
  37. 37what is a redox reaction?when oxidation and reduction happen at the same time in a reaction.
  38. 38what is reduction?when oxygen is lost in a reaction.
  39. 39what is an oxidationwhen oxygen is added in a reaction.
  40. 40how do you calculate relative atomic mass?mass number x percentage and then add together then divide by 100
  41. 41Who was the English physicist who discovered electrons in 1897?J.J. Thomson
  42. 42Ernest Rutherford furthered our understanding of atomic structure with discoveries he made in 1909. What did Rutherford discover and what was his model called?- he discovered that alpha particles could bounce back off atoms
    -a atom's mass is concentrated in the centre
    -he called the atom's centre the nucleus
  43. 43what was rutherford's model called?nuclear
  44. 44Hydrogen has three different isotopes: Protium Deuterium Tritium How many protons and neutrons are found in tritium?1 proton
    2 neutron

Information

Description
GCSE Chemistry Flashcards on chemistry flashcards, created by mamemor seck on 13/05/2022.
Created by
mamemor seck · May 2022
Updated
May 17, 2022
Views
0
Rating

Feedback

What is it about?

What do you think of the new look?

How do you like it?