Question

which particle represents the size of the sodium ion compared to the sodium atom? na atom na+ ion smaller na+ ion larger na+ ion same size

Explanation:

When a sodium atom (Na) loses an electron to form a sodium ion (Na⁺), the outermost electron shell is removed. This leads to a reduction in the electron - electron repulsions and an increase in the effective nuclear charge acting on the remaining electrons. As a result, the electron cloud shrinks, making the sodium ion smaller than the sodium atom.

Answer:

smaller