Group properties
- Created by: eliseclaire
- Created on: 09-01-19 16:45
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- Periodic table groups
- Group 1 - Alkali Metals
- Li, Na, K, Rb, Cs
- Very reactive
- Oxiides & hydroxides have general formula MO and MOH
- Oxides and hydroxides very basic & dissolve in water to form alkaline solution
- Reactivity increases DOWN the group
- Group 2 - Alkaline earth metals
- Mg, Ca, Sr, Ba
- Less reactive than G1
- Form basic oxides of formula MO2 and M(OH)2
- Oxides and hydroxides only sparingly soluble in water but do form basic solutions
- Transition Metals
- Less reactive than G1 and 2
- Oxides and hydroxides less strongly basic and are INSOLUBLE
- Noble Gases
- Ne, Ar, Kr, Xe
- Present in air
- Least reactive of the elements
- The Halogens
- F, Cl, Br, I
- Very reactive, non-metallic
- React with metals to form salts
- Group 6
- O, S, Se, Te
- Ability to form 2 chemical bonds
- Increase in metallic character from O - Te
- Group 5
- N, P, As, Sb, Bi
- Form 3 or 5 chemical bonds
- Gradation of metallic properties from N - Bi
- Group 4
- C, Si, Ge, Sn, Pb
- Ability to form 4 chemical bonds
- Gradation in metallic properties Pb-C
- Group 3
- B, Al, Ga, In, Ti
- From ions with charge +3
- B mettaloid
- Rest are metals
- Group 1 - Alkali Metals
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