a metal which is very soft and a non metal which is very hard.
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Potassium.amd golf.. .soft metal
Diamond hard non metal
Diamond hard non metal
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Cesium is one of the softest metal , it is so soft that we can cut it with our knife
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diamond is the hardest non metal , it is very difficult to break it
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diamond is the hardest non metal , it is very difficult to break it
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