QQuestionChemistry
QuestionChemistry
Describe the difference between covalent and ionic bonds. Give one example of each.
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Answer
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Step 1:: Define covalent bond
A covalent bond is a type of chemical bond where two atoms share electrons to achieve a stable electron configuration. This allows both atoms to fulfill the octet rule, which states that atoms prefer to have eight electrons in their outermost energy level.
Step 2:: Example of a covalent bond
One example of a covalent bond is the hydrogen molecule (H2). In this molecule, two hydrogen atoms share their single electron with each other, forming a stable molecule with two shared electrons. The Lewis structure for H^2 is: H:H |||
Step 3:: Define ionic bond
An ionic bond is a type of chemical bond that forms when one atom donates an electron to another atom, resulting in two ions with opposite charges. This creates a strong electrostatic attraction between the oppositely charged ions, which holds the atoms together in a solid ionic compound.
Step 4:: Example of an ionic bond
One example of an ionic bond is the sodium chloride (NaCl) compound. In this compound, sodium (Na) donates one electron to chlorine (Cl), forming a positive sodium ion (Na+) and a negative chloride ion (Cl-). The electrostatic attraction between these oppositely charged ions forms an ionic bond, which holds the compound together in a solid state.
Final Answer
Covalent bonds involve the sharing of electrons between two atoms, while ionic bonds involve the transfer of electrons from one atom to another, resulting in two oppositely charged ions. Examples of covalent and ionic bonds are H^2 (hydrogen molecule) and NaCl (sodium chloride), respectively.
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