1. Draw electron dot diagrams for the ions and the compound produced
when combining these pairs of elements. Write the formulas for the ions
and for the compound.
a)
b)
c)
d)
e)
f)
Mg and S
Al and O
Ga and Cl
K and O
Li and N
K and F
2. Predict which of the following compounds are ionic and which are
covalent, based on the location of their constituent atoms in the periodic
table:
3. Given the elements A and B of atomic numbers 9 and 20: (without using
the periodic table!)
a) Write the electronic configurations.
b) Indicate the group and the period of the periodic table to which they
belong.
c) Explain the type of bond that explains the union of these elements.
d) Write the formula of the compound.
e) Indicate some properties of the compound formed.