Question

an element is soft and can be cut easily with a knife.It is very reactive and cannot be kept open in the air. It react vigorously with water this element is most likely to be.
a) magnesium
b) potassium
c) phosphorus
d) almunium



it agrent please​

Answer 1

Answer:

Sodium is so soft that it can be cut with a knife. It is so reactive with air that it vigorously catches fire when kept open in the air and hence, we keep it immersed in kerosene oil.

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Answer 2

Answer:

Sodium is so soft that it can be cut with a knife. It is so reactive with air that it vigorously catches fire when kept open in the air and hence, we keep it immersed in kerosene oil.

Explanation:

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