Alkali metals like lithium (Li), sodium(Na), potassium(K) etc. 2)Some alkaline earth metal like Calcium (Ca) (Ref-1) 2)Aluminum (Al), Gallium (Ga)(melting point of Ga is 30 oC) 3)Lead (Pb),
can be cut by a steel-knife.
I hope This Help
2
Ishan Goyal answered this
Hi,
All metals cannot be cut with knife. Only sodium, potassium and calcium can be cut with knife because they are soft in nature.
Hope it helps.
Cheers!
1
Jenifer Jebastin answered this
sodium and potassium
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Akanksha Chauhan answered this
sodium and potassium
-2
Mansanjam answered this
sodium & potassium.
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Lisa Jha answered this
sodium and pottasium
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Priya Meena answered this
sodium & potassium.because they are soft in nature only they can be cut by steel knife
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Nashmia Nadeem answered this
sodium and potasssium
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Siddharth answered this
sodium, potassium, lithium, calcium(mostly the highly reactive metals) can be cut by a knife.
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Himanshu Bhagat answered this
sodium and potatium can be cut by knife
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Palak Verma answered this
Metals are generally hard except, sodium, lithium and potassium, which can be easily cut with a knife, as they are highly reactive.
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Palak Verma answered this
Due to the presence of weak metallic bonding alkali metals are soft and can be cut with a knife. ii) Reactivity of metals depends on ionization energy or ionization enthalpy. Ionization enthalpy of an element depends on its atomic radius. ... Therefore, potassium is more reactive than sodium.
