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- #s- Block Elements ( Alkali and Alkaline earth metals )
Which of the following elements can not be cut with a knife?
Option: 1
K
Option: 2
Na
Option: 3
Ca
Option: 4
Ti
Answers (1)
Alkali metals are generally soft and can be cut with a knife except for Lithium, This is due to weaker cohesive forces between them or weak metallic bonding.
While d- block elements have stronger metallic bondings and generally can not be cut with a knife.
K, Na, and Ca are soft metals and can be cut with a knife. Ti is a d-block element and hard enough that it can not be cut with a knife
The correct answer is option 4.
View full answer
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