Complete the table below For example in the first row decide

Complete the table below. For example, in the first row decide whether Sc is a cation or anion. In the second row, write the symbol for the ion that an atom of strontium is mostly likely to form and then decide what type of ion it is. most likely ion element alo symbol of ion type of ion scandium | ScJ· 1°cation Oanion strontiumO cation anion phosphoruscation anion cationO anion fluorineO cation anion rubidium

Solution

Element              symbol of ion                                  type of ion

scandium              Sc^3+                                          cation

strontium              Sr^2+                                           cation

phosphorus          P^3-                                            anion

rubidium             Rb^+                                             cation

fluorine               F^-                                           anion

strontium by lose of two electrons to get octet electonic configuration

Sr ----------------> Sr^2+ + 2e^-

38e^-                    36e^-

Phosphorus by gain of three electrons to get octet electonic configuration

P + 3e^- ---------------> P^3-

15e^-                         18e^-

Rb --------------------> Rb^+ + e^-

37e^-                           36e^-

F + e^- -----------------> F^-

9e^-                            10e^-