Looking at the periodic table, determine the number of valence electrons present in a following neutral atoms.

Question

Column A
1.
Oxygen (O):
Oxygen (O)
2.
Aluminium (Al):
Aluminium (Al)
3.
Neon (Ne):
Neon (Ne)
4.
Silicion (Si):
Silicion (Si)
5.
Magnesium (Mg):
Magnesium (Mg)
6.
Iodine (I):
Iodine (I)
7.
Lithium (Li):
Lithium (Li)
8.
Nitrogen (N):
Nitrogen (N)
Column B
a.2 valence electrons
b.6 valence electrons
c.7 valence electrons
d.1 valence electrons
e.4 valence electrons
f.3 valence electrons
g.8 valence electrons
h.5 valence electrons

Answer 1

Column A
1. Oxygen (O): 6 valence electrons (b)
2. Aluminium (Al): 3 valence electrons (f)
3. Neon (Ne): 8 valence electrons (g)
4. Silicion (Si): 4 valence electrons (e)
5. Magnesium (Mg): 2 valence electrons (a)
6. Iodine (I): 7 valence electrons (c)
7. Lithium (Li): 1 valence electron (d)
8. Nitrogen (N): 5 valence electrons (h)