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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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first 3 in group 1 |
lithium, sodium, potassium |
Li, Na, K |
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first 4 in group 7 |
fluorine, chlorine, bromine, iodine |
Fl, Cl, Br, I |
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what similarities do the alkali metals have? |
they react in similar ways because they have 1 electron in their outer shell, all very reactive, they aren't dense |
electronic structure, flotation |
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what similarities do the halogens have? |
they react in similar ways because they have 7 electrons in their outer shell, all very reactive |
group 7 |
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what equation shows the reaction between an alkali metal and water, and what is produced? |
2K + 2(H2O) ~ 2(KHO) + H2 alkali hydroxide and hydrogen |
lots of 2s |
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what happens in a displacement reaction? equation? |
a more reactive halogen steals the alkali metal from a less reactive halogen Fl + NaCl ~ NaFl + Cl |
hotter person gets the girl (displacement disco) |
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what is the order of reactivity for group 1? why? |
more reactive at the bottom - they lose an electron, and the further down the group, the bigger distance between the electron and the nucleus. |
students jumping out of windows and how easily Ms Hallet will be able to stop them |
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what is the order of reactivity for group 7? why? |
most reactive at the top (fluorine is the 2nd most reactive) - they have a gap, and the closer that gap is to the nucleus, the greater the pull to another electron |
electron structure |
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what are the equations for an alkali metal's reaction with oxygen? chlorine? |
2Li + Cl2 ~ 2LiCl 4Li + O2 ~ 2(Li2O) |
diatomic molecules |
