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12 questions from this quiz
Centre (Groups 3 to 12)
Group 1
Less reactive
Low density, some float on water
It is soft and can be cut with a knife
Caesium
Coloured compounds
One oxidation state (+1)
It acts as a catalyst
Good conductors of heat and electricity
React vigorously
2NaOH+H22NaOH + H_22NaOH+H2
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