Indicate whether each statement below is true or false. a. The core electrons are called valence electrons. ____ b. Ionic bonds are formed by the attraction between cations and anions. ____ c. Ionic bonds are formed from atoms by a transfer of electrons. ____ d. In a Lewis symbol, the chemical symbol represents the nucleus of the atom. ____ e. An ion written as a Lewis symbol has brackets outside the electrons. ____ f. Two electrons involved in a bond produce a double bond. ____ g. If the ΔEN value is very large the bond is polar covalent. ____ h. The central atom is typically the atom with the highest electronegativity. ____ i. An expanded octet has larger electron clouds. ____ j. A nonpolar molecule can have polar bonds. ____
Types of Chemical Bonds
The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds between its constituents. Stronger the chemical bond, more will be the stability in the chemical compounds. Hence, it can be said that bonding defines the stability of chemical compounds.
Polarizability In Organic Chemistry
Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.
Coordinate Covalent Bonds
A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate covalent bond or dative bond is important to know about the special type of bonding that leads to different properties. Since covalent compounds are non-polar whereas coordinate bonds results always in polar compounds due to charge separation.
Indicate whether each statement below is true or false.
a. The core electrons are called valence electrons. ____
b. Ionic bonds are formed by the attraction between cations and anions. ____
c. Ionic bonds are formed from atoms by a transfer of electrons. ____
d. In a Lewis symbol, the chemical symbol represents the nucleus of the atom. ____
e. An ion written as a Lewis symbol has brackets outside the electrons. ____
f. Two electrons involved in a bond produce a double bond. ____
g. If the ΔEN value is very large the bond is polar covalent. ____
h. The central atom is typically the atom with the highest electronegativity. ____
i. An expanded octet has larger electron clouds. ____
j. A nonpolar molecule can have polar bonds. ____
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