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| 1 |
A row of very useful elements on Period 4 with many structural applications. (10,5) |
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2 |
The least reactive Alkali Metal. (2) |
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3 |
If chlorine is breathed in it can cause (4) to the lungs. |
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4 |
Formula of the compound formed when potassium reacts with water. (3) |
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6 |
This type of reaction gives out heat energy. (10) |
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7 |
The charge on a neutron! (4) |
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8 |
With increase in atomic number the reactivity of the Alkali Metals (9) |
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10 |
The black compound formed when copper is heated in air. (3) |
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11 |
The last part of the names of salts formed from the Group 7 elements. (3) |
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12 |
Not very reactive but can light up your life! (2) |
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18 |
Formed by nuclear fusion of hydrogen in the Sun but not very reactive! |
|
21 |
Essential for respiration! (2) |
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22 |
Symbol of the element that will displace bromine and iodine from their salts. (2) |
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23 |
Symbol for hydroxide in a chemical formula. (2) |
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24 |
Symbol of a metal that is used in electrical
wiring |
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25 |
The colour of the precipitate when sodium hydroxide is added to iron(III) chloride solution. (5) |
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27 |
Top of Group 1. (2) |
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28 |
Its easy to (3) sodium. |
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29 |
The chemical symbol of a very reactive element with water but quite harmless in common salt. (2) |
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31 |
This molecule can't displace the top 3 Halogens! (2) |
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33 |
Has the lowest atomic number in Group 2. (2) |
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34 |
A hot way of identifying certain metals in their compounds. (5,4) |
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37 |
The negative particle that orbits the nucleus of an atom. |
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38 |
There is no charge for adding this to a nucleus! (7) |
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39 |
What chlorine can do to you! (4) |
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42 |
An element used to disinfect the skin in operations. (6) |
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44 |
A very unreactive gas used in light bulbs and lasers. (5) |
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45 |
Formula of the gaseous molecule formed when potassium reacts with water. (2) |
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46 |
Very adequately describes the chemical character of the Noble Gases! (5) |
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48 |
The last three letters of the Group 7 elements. |
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52 |
Readily gives a brown vapour when the bottle is opened in the fume cupboard. (2) |
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53 |
Vertical columns of similar elements in the Periodic Table. |
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55 |
The basic building blocks of all substances and come in 92 naturally
occurring varieties. (5) |
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56 |
The state of chlorine and fluorine at room temperature. (3) |
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59 |
Shiny yellow treasure! (4) |
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61 |
Metal used to make an excellent coducting base to more expensive cooking pans. (6) |
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63 |
The flame colour for potassium, a bit like lilac too. (6) |
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66 |
The centre of an atom and electrons orbit around it. (7) |
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67 |
Symbol of Transition Metal that rusts too easily! (2) |
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69 |
The colour of the precipitate formed when sodium hydroxide solution is added to copper sulphate solution. (4) |
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71 |
Symbol of a rare metal which is in the 3rd series of Transition Metals and used to make expensive silvery jewellery but isn't silver! (2)
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| 72 |
The electrical charge on a proton. (4) |
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73 |
The (4) of a reaction is its speed. (4) |
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74 |
Not really a transition metal, at the end of the series and doesn't form coloured compounds usually, but its handy in batteries and brass! (4) |
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75 |
More reactive than I and not as reactive as Cl. (2) |
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76 |
Symbol of the element which is good at killing bacteria in swiming pools. |
|
78 |
Formula of water. (3) |
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80 |
I hope this organ is working well when your chemistry teacher is explaining things! (3) |
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82 |
Formula of a dark coloured molecule. (2) |
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84 |
Alkali Metals get more reactive with increase in atomic number? (3) |
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85 |
Tungsten, oxygen and nitrogen sum up what you would like from the lottery. (3) |
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87 |
A period of time, the 19th century was a great one for the development of the Periodic Table. (3) |
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88 |
Formula of potassium iodide. (2) |
