Which are radioactive isotopes of oxygen? (Hint: Add protons until the name changes to oxygen. Then, add neutrons until the
isotope is radioactive.)
Select one:
a.0-17 and 0-18
b. 0-13 and 0-19
c.0-14 and 0-16
d. O -16 and 0-19

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which substance has non polar covalent bonds

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride