GoConqr hat ein neues Design! Sag uns, wie es dir gefällt.

Kostenlos registrieren

Karteikarten

Atomic structure and the periodic table

Miss C Rodgers Englisch 77 Karten

Karten in diesem Stapel (77)

  1. 1Which element has the symbol Al?Aluminium
  2. 2What is the positively charged area of an atom called?Nucleus
  3. 3What does an atomic number represent?The number of protons in the nucleus or electrons in an atom.
  4. 4What does the mass number represent?The total number of protons and neutrons in the nucleus.
  5. 5What is an isotope?Where two forms of an element differ in the number of neutrons.
  6. 6Where would you find electrons in an atom?Electron shells (orbits) around the nucleus.
  7. 7An element has the electronic structure 2, 8, 5. Which group on the periodic table would it be in?5
  8. 8How many neutrons does Sulphur have?16
  9. 9How many protons does nitrogen have?7
  10. 10Why do atoms never have an overall charge?An atom has same number of protons electrons. Protons are positive, electrons negative and neutrons have no charge.
  11. 11What is relative atomic mass?The mass of an ‘average atom’ of that element compared with the mass of an atom of carbon-12.
  12. 12Which group is calcium in?2
  13. 13Which period is chlorine in?3
  14. 14Elements with the same properties are found in the same .Group
  15. 15Where are the transition metals found on the periodic table?Between group 2 and 3.
  16. 16What does the group number tell us about the elements in that group?They will all have the same number of electrons in their outer shell and similar properties.
  17. 17What is the maximum occupancy of shell 1 of an atom?2
  18. 18What is the maximum occupancy of shell 2 of an atom?8
  19. 19What is the mass of electrons in an atom?Negligible
  20. 20Are the metals found on the left or right of the periodic table?Left
  21. 21What do elements in the same period have in common?They have the same number of occupied electron shells.
  22. 22What are group 1 metals also known as?Alkali metals
  23. 23Group 1 elements react vigorously with water. Does this reactivity increase or decrease down the group? Why?Increases due to the increasing size of the atom/distance from the positively charged nucleus making it easier for the outer electron to be lost.
  24. 24Is barium a metal or non-metal?Metal
  25. 25Lithium + oxygen formsLithium oxide
  26. 26Sodium + water formsSodium hydroxide and hydrogen gas
  27. 27Potassium + chlorine forms .Potassium chloride
  28. 28Group 1 melting and boiling points increase/decrease down the group.Decrease
  29. 29Group 7 melting and boiling points increase/decrease down the group.Increase
  30. 30Which state (s, l or g) is chlorine at room temperature?Gas
  31. 31Which group has elements which are unreactive?Group 0
  32. 32During reactions group 1 loses an electron and group 2 loses 2 electrons. Which one is more reactive?Group 1
  33. 33In a reaction, how many electrons do group 7 need to gain a full outer shell?1
  34. 34Does the reactivity of group 7 elements increase or decrease down the group? Why?Decreases down the group because of the increasing size of the atom/distance from the positively charged nucleus results in a smaller force attracting the additional electron.
  35. 35What will you observe when sodium is burned in oxygen?Orange - yellow flame
  36. 36What will you observe when lithium is burned in oxygen?Crimson-red flame
  37. 37What will you observe when potassium is burned in oxygen?Lilac flame
  38. 38What colour is bromine at room temperature?Reddish-brown liquid
  39. 39What will you observe when lithium reacts with water?Fizzes then disappears
  40. 40What is formed when potassium is burned in oxygen?Potassium oxide
  41. 41What happens to lithium, sodium and potassium in air / oxygen?Tarnishing of freshly cut surface.
  42. 42What is formed when lithium reacts with water?Lithium hydroxide and water.
  43. 43What will you observe when lithium reacts with chlorine?White powder is produced called lithium chloride
  44. 44What will you observe when sodium reacts with chlorine?Sodium burns with a bright yellow flame. Clouds of white powder are produced and settle on the sides of the jar. This is the salt sodium chloride.
  45. 45What test is used to identify hydrogen gas?Squeaky pop is observed with a lit split.
  46. 46What will you observe when potassium reacts with water?Ignites with sparks and a lilac flame, disappears very quickly
  47. 47What is formed when sodium reacts with chlorine?Sodium chloride
  48. 48What colour is iodine at room temperature?Black
  49. 49Why are most of the alkali metals stored in oil?They are very reactive and react with oxygen in the air.
  50. 50What will you observe when sodium reacts with water?Fizzes rapidly, melts into a ball and disappears quickly.
  51. 51What are group 7 elements also known as?Halogens
  52. 52Which is the most reactive, potassium or lithium?Potassium
  53. 53Which is the most reactive, chlorine or iodine?Chlorine
  54. 54What colour is chlorine at room temperature?Greenish-yellow gas
  55. 55What will you observe when sodium reacts with chlorine?Sodium burns with a bright yellow flame. Clouds of white powder are produced and settle on the sides of the jar. This is the salt sodium chloride.
  56. 56What is formed when chlorine reacts with iron wool?Iron chloride
  57. 57Which halogen reacts most vigorously with the iron wool?Lithium
  58. 58What is the reaction called when a more reactive halogen displaces a less reactive halogen?Displacement reaction
  59. 59What’s formed when chlorine reacts with sodium bromide?Sodium chloride and bromine
  60. 60What colour change would you see when iodine reacts with potassium bromide?No change
  61. 61What is formed when chloride ions (Cl-) combine with silver ions (Ag+)?Silver chloride
  62. 62What is the colour of the precipitate when chloride ions (Cl-) combine with silver ions (Ag+)?White
  63. 63What is the colour of the precipitate when bromide ions (Br-) combine with silver ions (Ag+)?Pale yellow
  64. 64What is the colour of the precipitate when iodide ions (I-) combine with silver ions (Ag+)?Yellow
  65. 65Give uses for chlorineKills bacteria; used in treatment of water supplies, treatment of swimming pool water, making household cleaners.
  66. 66Give uses for iodineKills bacteria; used as antiseptic following hospital procedures
  67. 67What flame colour would you expect for barium ions?Apple green
  68. 68What flame colour would you expect for calcium ions?Brick red
  69. 69What is an ion?A positively (lost an electron) or negatively (gained an electron) charged atom.
  70. 70When is an atom most stable?When it has a full outer shell.
  71. 71What chemical is used to test for halide ions?Silver nitrate
  72. 72Why are noble gases very unreactive?They have a full outer shell.
  73. 73Which noble gas emits light when electric current passes through it?Neon
  74. 74Which noble gas is used in airships and weather balloons?Helium
  75. 75Which noble gas is used in light bulbs and as an inert atmosphere for welding?Argon
  76. 76What is the test for carbon dioxide?Lime water turns milky
  77. 77What colour is fluorine at room temperature?Pale yellow gas

Informationen

Beschreibung
Karteikarten am Atomic structure and the periodic table, erstellt von Miss C Rodgers am 12/06/2024.
Erstellt von
Miss C Rodgers · Jun 2024
Aktualisiert
12 Jun 2024
Aufrufe
82
Bewertung

Feedback

Worum geht es?

Wie gefällt dir das neue Design?

Dein Eindruck