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- ยบ
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- @AtGraphic 228,130
- @Picture ADB10_09.BMP
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- '----------------- INSTRUCTION --------------------
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- @At 135,15
- #b#crClick on each group in the periodic table to find out how you
- #crcalculate its valency.#b
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- '----------------- HOT SPOT 1 DATA --------------------
- @HotSpotBegin 227,132,32,30,none
- @Erase 124,258,450,90
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- @AtGraphic 196,267
- @Picture ADB50_01.BMP
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- '@At 125,259
- 'Hydrogen - Hydrogen is an exception to the valency rule. It
- 'only has one electron so it can either donate it or receive one
- 'when bonding ionically or share it in covalent compounds. It
- 'can therefore have a valency of +1 or -1.
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- @hotspotend
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- '----------------- HOT SPOT 2 DATA --------------------
- @HotSpotBegin 228,167,34,100,none
- @Erase 124,258,450,90
- @At 125,259
- Group 1 - Every metal in group 1 has 1 electron to donate
- in its outer shell so group 1 metals have a valency of 1. Eg
- NaCl
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- @hotspotend
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- '----------------- HOT SPOT 3 DATA --------------------
- @HotSpotBegin 265,166,31,100,none
- @Erase 124,258,450,90
- @At 125,259
- Group 2 - Every metal in group 2 has 2 electrons to donate
- in its outer shell so group 2 metals have a valency of 2. Eg
- MgCl2
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- @hotspotend
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- '----------------- HOT SPOT 4 DATA --------------------
- @HotSpotBegin 299,166,34,67,none
- @Erase 124,258,450,90
- @At 125,259
- Group 3 - Every element in group 3 has 3 electrons in its outer
- shell and therefore a valency of 3. Eg AlCl3
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- @hotspotend
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- '----------------- HOT SPOT 5 DATA --------------------
- @HotSpotBegin 332,165,39,72,none
- @Erase 124,258,450,90
- @At 125,259
- Group 4 - Group 4 is the first of the non metal groups. Here
- you should think of the outer shell being half empty. With 4
- spaces Group 4 elements can accept 4 electrons from the
- metals or share the 4 with a non metal. The valency of group
- 4 is therefore 4 - 8 = -4 Eg CH4
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- @hotspotend
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- '----------------- HOT SPOT 6 DATA --------------------
- @HotSpotBegin 365,162,42,74,none
- @Erase 124,258,450,90
- @At 125,259
- Group 5 - group 5 elements have 3 spaces in their outer shell
- and can therefore accept 3 electrons from a metal or share
- 3 with a non metal to make up the full shell of 8. The valency
- of group 5 is therefore 5 - 8 = -3 Eg NH3
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- @hotspotend
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- '----------------- HOT SPOT 7 DATA --------------------
- @HotSpotBegin 400,165,32,69,none
- @Erase 124,258,450,90
- @At 125,259
- Group 6 - Group 6 elements have only 2 spaces in their outer
- shell so their valency is 6 - 8 = -2.
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- @hotspotend
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- '----------------- HOT SPOT 8 DATA --------------------
- @HotSpotBegin 430,167,36,68,none
- @Erase 124,258,450,90
- @At 125,259
- Group 7 - Group 7 elements have only 1 space in their outer
- shell so their valency is 7 - 8 = -1.
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- @hotspotend
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- '----------------- HOT SPOT 9 DATA --------------------
- @HotSpotBegin 463,134,45,103,none
- @Erase 124,258,450,90
- @At 125,259
- Group 0 - Group 0 elements have a complete outer shell so
- they cannot bond. They therefore have a valency of 0.
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- @hotspotend
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- '--------------- WAIT UNTIL ALL HOTSPOT or FORWARD is SELECTED ------------
- @autoMoveOn true
- @Prompt
- @onForwardNextScreen
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- '------------------------ ERASE ORGINAL INSTRUCTIONS ----------------------
- @Erase 125,6,479,43
- @Enable Forward
- @At 365,370
- #b#crClick on Forward to move on.
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- @prompt
- @Question
- @Erase 364,369,275,23
- @Erase 124,258,450,90
- @At 135,300
- What is the valency of oxygen?
- '#[A]
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- '@Answer -2
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- '@Feedback Wrong
- '#bNo#b, oxygen is in group 6. 6-8 = -2 therefore the valency is -2.
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- '@Animation BoseGrim
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- '@Feedback Correct
- '#bYes#b, oxygen is in group 6 which gives it a valency of -2.
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- '@Animation BoseSmile
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- @Prompt
- @Question
- @Erase 124,258,450,90
- @At 135,300
- What is the valency of aluminium?
- '#[A]
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- '@Answer 3 | +3
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- '@Feedback Wrong
- '#bNo#b, aluminium is in group 3 therefore the valency is +3.
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- '@Animation BoseGrim
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- '@Feedback Correct
- '#bYes#b, aluminium is in group 3 which gives it a valency of +3.
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- '@Animation BoseSmile
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- @Prompt
- @Question
- @Erase 124,258,450,90
- @At 135,300
- Using the formula editor write the formula for Aluminium Oxide.
- '#[A]
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- '@Answer Al2O3
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- '@Feedback Wrong
- '#bNo#b, you need to balance the valencies by multiplying the aluminium
- by 2 and the oxygen by 3 giving Al2O3
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- '@Animation BoseGrim
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- '@Feedback Correct
- '#bYes#b, you need to balance the valencies by multiplying the
- aluminium by 2 and the oxygen by 3.
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- '@Animation BoseSmile
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