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28 Cards in this Set
- Front
- Back
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Are Periodic Table Rows horizontal or vertical? |
Horizontal |
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Are Periodic Table Groups horizontal or vertical? |
Vertical |
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Where are non metals? |
On the right of the table |
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Where are Metals? |
on the middle and left of the table |
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How are elements put in groups |
Corresponding number of electrons on the outer shell (on a table with groups 1 to 8, with the exception of Helium with 2 electrons on the outer shell) |
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Why do same group elements have similar properties? |
they have the same number of electrons in the outer shell |
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What dictates how an element reacts? |
How many electrons the element has on the outer shell |
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Why are noble gasses (inert Gasses) very un-reactive? |
They have full outer shells, so do not need to take or give electrons |
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How do group 1 (alkaline) metals react with water? |
They create a metal hydroxide, and hydrogen |
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What observations can be made with a group 1 metal reacting with water? |
Fizzing (Effervescence), Movement, Floating, Flames, heat given off, the metal gets smaller |
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How does the reactivity change as you go down the group 1 elements? |
They become more reactive |
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Why do group 1 metals get more reactive the further down the group you go? |
Their outer electron shell gets further away, so the electrostatic force between the nucleus and the electron is weaker, so the electron is more easily lost to other atoms |
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Physical state of Chlorine at room temperature? |
Gas |
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Physical state of Bromine at room temperature |
Liquid |
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Physical state of iodine at room temperature |
Solid |
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What properties do most group 7 elements share as gasses? |
The are diatomic |
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How does the reactivity change at you go down the group 7 elements? |
Th reactivity decreases |
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Why does the reactivity decrease as you go down the group 7 elements? |
Because the outer electron shell is further away, so there is a weaker electrostatic force of attraction between the nucleus and the electron needed to make the outer shell full |
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Describe the experiment to demonstrate that a more reactive halogen will displace a less reactive halogen from a solution of one of its salts |
combine a salt of a less reactive halogen with another more reactive halogen, and see if there is a reaction. |
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What kind of reaction is halogen displacement |
Redox reaction (Reduction is gain of electrons) |
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How do the oxides of non metals and metals differ? |
Non-metal oxides are covalently bonded, metal oxides are ionically bonded |
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State the properties of group 1 metals |
Easy to cut, easier further down the group. Dense, denser further down the group. Low melting points (when compared to iron), melting point decreases as you go down the group, Very reactive, more reactive the further down the group, they react with water to form an alkaline solution, their compounds are white, |
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Why must group 1 elements be stored in oil? |
They react with oxygen from the air to form oxide, so the oil must be used to prevent the oxygen from reaching the metal |
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what is the pH of water after it has reacted with a group 1 element? |
pH 12-13 (Fairly alkaline) |
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What causes water to be alkaline? |
OH- Ions |
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what are transition metals? |
Metals that are in group 3-12 of the periodic table (on a 1-18 periodic table) |
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What are the properties of transition metals? |
High melting points, Not very reactive, good thermal and electrical conductors, strong and hard, useful as catalysts, high density, can form different ions, their compounds are coloured |
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what are halogen oxides called? |
Halides |
