Given that the only naturally occurring isotope of sodium is 23Na,what is its isotopic mass? (Hint: Refer to the Periodic Table. )

Question

Quizplus · Accepted Answer

The atomic mass of sodium (Na) on the periodic table is 22.99 amu. This is the weighted average of the masses of all the isotopes of sodium, taking into account their relative abundance. Since the only naturally occurring isotope of sodium is 23Na, its isotopic mass is the same as its atomic mass, which is 22.99 amu. Therefore, the best choice is D, 22.99 amu.

Given That the Only Naturally Occurring Isotope of Sodium Is