At STP, which element has a definite shape and volume? a. K  b. N  c. C  d. Ne?

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a. K (Potassium ) because it is a solid
b. N (Nitrogen) does not have a definite shape because it is a gas and assumes the shape of the container it is held in .
c. C (Carbon) because it is a solid.
d. Ne (Neon) does not have a definite shape because it is a gas and assumes the shape of the container it is held in ....Show more

Both potassium and carbon are solids at STP. Gases (N2 and Ne) don't have definite shapes. The standard form of carbon, though, is graphite which tends to be a powdery substance. Potassium, though, is a solid metal. So, I think the best answer would be: a. K....Show more