What are the basic units—single atoms, molecules, or formula units—that compose each substance?
(a) Rb2O
(b) N2
(c) Fe(NO3)2
(d) N2F4
Solution 50P
Step 1:
The elements exist as atomic forms - basic unit is element.
The elements exist as molecular forms - basic unit is diatomic molecules
The elements exist as electrically neutral collection of ions - basic unit is ionic compound.