The formula of most elements is the same as the symbol of the element.This indicates that the element is stable as a single __(i)__,the smallest unit particle of the element.Other elements exist as stable,distinct,and independent __(ii)__,which are made up of two or more atoms.
A)(i) molecule; (ii) particles
B)(i) molecule; (ii) crystalline solids
C)(i) crystalline solid; (ii) molecules
D)(i) atom; (ii) mixtures
E)(i) atom; (ii) molecules

Question

Quizplus · Accepted Answer

The statement mentions that the formula of most elements is the same as the symbol of the element, indicating that the element is stable as a single atom. This suggests that the missing word in (i) could be "atom." Additionally, it mentions that other elements exist as stable, distinct, and independent particles made up of two or more atoms, suggesting that the missing word in (ii) could be "molecules." Therefore, the best choice is (E) atom for (i) and molecules for (ii).

The Formula of Most Elements Is the Same as the Symbol