Why some group first metal can be cut with a knife? Give example
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Because there intermolecular forces of attraction is less and are soft
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1) Their intermolecular force of attraction is less
2) They have low Z effective value
3) They tend to undergo charge separation in compounds
So they are soft and can be cut with knife
Eg. Sodium Na, Potassium K
2) They have low Z effective value
3) They tend to undergo charge separation in compounds
So they are soft and can be cut with knife
Eg. Sodium Na, Potassium K
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