Tha metal are not cutting nife
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Tungsten and titanium metal are not cutting by knife
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BONJOUR,
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THE ANSWER IS TUNGSTEN AND TITANIUM.
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THE ANSWER IS TUNGSTEN AND TITANIUM.
heenu20:
but only sodium and potassium can cut with knife rest metals can cut plz understand me
Sodium and Poatssium metals are the two metals which are soft and can be cut with a knife.
Reason:
-->Sodium and Potassium belongs to Alkali metals [first group of periodic table]
-->They are reactive metals.
-->As the atomic size increases down the group, hence the force of attraction between the valence electron and nucleus decreases.
-->Metallic bonds are not strong .
-->Hence they are soft.
-->Potassium is more softer than sodium.
Reason:
-->Sodium and Potassium belongs to Alkali metals [first group of periodic table]
-->They are reactive metals.
-->As the atomic size increases down the group, hence the force of attraction between the valence electron and nucleus decreases.
-->Metallic bonds are not strong .
-->Hence they are soft.
-->Potassium is more softer than sodium.
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