Carbon-15 and nitrogen-15 are isotopes of the same element
What will be an ideal response?
Isotopes have the same number of protons, and therefore the same atomic identity.
Carbon and nitrogen are not the same atom.
You might also like to view...
Molecular Speeds: A sample of an ideal gas is heated and its Kelvin temperature doubles. If the root-mean-square speed of its molecules was originally v, what is the new root-mean-square speed?
A. 4v
B. 2v
C. v
D. v/
E. v/4
Why does Europa's surface promise life of some kind?
What will be an ideal response?
On the main sequence, stars obtain their energy
A) by converting helium to carbon, nitrogen, and oxygen. B) from nuclear fission. C) by converting hydrogen to helium. D) from gravitational contraction. E) from chemical reactions.
Suppose you measure the density (mass per volume) of an object moving by you at very high speed. How will its density compare to the density it would have at rest in your reference frame?
A) Its density would be lower. B) Its density would be higher. C) Its density would be the same. D) There is no way to know, because relativity doesn't tell us anything about density.