Looking at the periodic table, determine the number of valence electrons present in a following neutral atoms.
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
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)
Column A:
1. Oxygen (O): Oxygen (O) has 6 valence electrons (option b.6 valence electrons).
2. Aluminium (Al): Aluminium (Al) has 3 valence electrons (option f.3 valence electrons).
3. Neon (Ne): Neon (Ne) has 8 valence electrons (option g.8 valence electrons).
4. Silicon (Si): Silicon (Si) has 4 valence electrons (option e.4 valence electrons).
5. Magnesium (Mg): Magnesium (Mg) has 2 valence electrons (option a.2 valence electrons).
6. Iodine (I): Iodine (I) has 7 valence electrons (option c.7 valence electrons).
7. Lithium (Li): Lithium (Li) has 1 valence electron (option d.1 valence electron).
8. Nitrogen (N): Nitrogen (N) has 5 valence electrons (option h.5 valence electrons).
To determine the number of valence electrons present in each of the neutral atoms given in Column A, you can refer to the periodic table.
1. Oxygen (O):
Oxygen (O) is found in Group 16 of the periodic table. The number of valence electrons for elements in Group 16 is 6. Therefore, the answer is b. 6 valence electrons.
2. Aluminium (Al):
Aluminium (Al) is found in Group 13 of the periodic table. The number of valence electrons for elements in Group 13 is 3. Therefore, the answer is f. 3 valence electrons.
3. Neon (Ne):
Neon (Ne) is found in Group 18 of the periodic table. Elements in Group 18, also known as the noble gases, have a full valence shell of electrons. Therefore, the number of valence electrons for Neon is 8. The answer is g. 8 valence electrons.
4. Silicon (Si):
Silicon (Si) is found in Group 14 of the periodic table. The number of valence electrons for elements in Group 14 is 4. Therefore, the answer is e. 4 valence electrons.
5. Magnesium (Mg):
Magnesium (Mg) is found in Group 2 of the periodic table. The number of valence electrons for elements in Group 2 is 2. Therefore, the answer is a. 2 valence electrons.
6. Iodine (I):
Iodine (I) is found in Group 17 of the periodic table. The number of valence electrons for elements in Group 17 is 7. Therefore, the answer is c. 7 valence electrons.
7. Lithium (Li):
Lithium (Li) is found in Group 1 of the periodic table. The number of valence electrons for elements in Group 1 is 1. Therefore, the answer is d. 1 valence electron.
8. Nitrogen (N):
Nitrogen (N) is found in Group 15 of the periodic table. The number of valence electrons for elements in Group 15 is 5. Therefore, the answer is h. 5 valence electrons.