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Answers
Answer:
1.part
Sodium .2.8.1
Oxygen .2.6
Megnesium.2.8.2
2.part Na.2.8.1×2
2.8.8.4
O 2.6
totel 2.8.8.8.4
MgO 2.8.8.2
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Answer:
a)With the next element, sodium, the process starts over with a single electron because sodium has a single electron in its highest-numbered shell, the n = 3 shell. By going through the periodic table, we see that the Lewis electron dot diagrams of atoms will never have more than eight dots around the atomic symbol.
The electron dot diagram for an element shows the valence electrons for the element. Oxygen is in group 16/VIA, so it has six valence electrons. ... This will give you one pair of electrons on two sides of the symbol, and the other two sides will each have an unpaired electron.
Magnesium is element #12. To draw the Lewis electron dot diagram we picture in our minds the symbol for Mg in a box with all of its core electrons (i.e., 1s22s22p6). Then we place the valence electrons around the sides of the box with each side representing an orbital in the outermost energy level.
b)The formation of both the compounds are given below.
Explanation:
The given compounds are ionic compounds.
Ionic compounds are defined as the compounds which are formed by the complete transfer of electrons from one atom to another atom. In these compounds, oppositely charged ions are attracted towards each other to form a compound.
The atom which looses electrons is known as electropositive atom and it attains positive charge. The atom which gains electrons is known as electronegative atom and it attains negative charge.
These bonds are usually formed between a non-metal and a metal.
For
Sodium is the 11th element of the periodic table having 11 electrons. The electronic configuration of this element is
This will loose 1 electron to form ion.
Oxygen is the 8th element of the periodic table having 8 electrons. The electronic configuration of this element is
This will gain 2 electrons to form ion.
To form compound, 2 sodium ions are needed to neutralize the charge on oxygen ion.
For
Magnesium is the 12th element of the periodic table having 12 electrons. The electronic configuration of this element is
This will loose 2 electron to form ion.
Oxygen is the 8th element of the periodic table having 8 electrons. The electronic configuration of this element is
This will gain 2 electrons to form ion.
To form compound, 1 magnesium ion is needed to neutralize the charge on oxygen ion.
The formation of both the compounds are given below.
