1.) Why does carbon form covalent bonds?
2 answers:
Explanation:
1). A bond, that is, formed by sharing of electrons between the combining atoms is known as a covalent bond.
For example, atomic number of carbon atom is 6 with electronic distribution 2, 4.
So, in order to completely fill the octet carbon atom will combine with atoms that can provide 4 additional electrons to a carbon atom.
Hence, carbon form covalent bonds because it will usually bond to multiple atoms which can provide a total of 4 additional electrons.
2). When an atom loses one electron then it acquires a +1 charge. Whereas when an atom tends to gain one electron then it acquires a -1 charge.
An ionic bond is formed when there is transfer of electrons from one atom to another.
For example, fluorine on gaining one electron will form a ion and sodium on losing an electron will form a
ion.
Therefore, we can conclude that ionic bond will be formed for atoms that have a +1 or -1 charge.
3). When there is great difference in electronegativity of combining elements then it also results in the formation of an ionic bond. This is because difference in electronegativity causes partial positive charge on cation and partial negative charge on anion.
Also, families of the combining elements help in determining the difference in electronegativity.
Thus, we can conclude that the relative ionic or covalent character of chemical bonds may be estimated by:
- comparison of the associated families to which the elements belong .
- the difference in electronegativities.
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Answer:
Explanation:
Manganese is the element of group 7 and forth period. The atomic number of Manganese is 25 and the symbol of the element is Mn.
The electronic configuration of the element, manganese is -
To form , it will lose 3 electrons from the valence electrons and thus the configuration of the ion is:-