Chemical Bonds Quiz

What is the main reason atoms form chemical bonds?

• To repel other atoms

• To attract more electrons

• To increase their overall energy

• To reduce their overall energy

Which type of bond is formed by the transfer of electrons from a metal to a non-metal?

• Metallic bond

• Polar covalent bond

• Ionic bond

• Non-polar covalent bond

What is the energy between two ions in an ionic bond determined by?

• The product of the two charges divided by the distance between the two nuclei

• The size of the atoms involved

• The difference in electronegativity between the two atoms

• The number of electrons shared between the two atoms

Which type of bond is more polar: ionic or polar covalent?

• Ionic bond

• Polar covalent bond

• Neither bond is polar

• They have the same level of polarity

Are the atoms more stable when they are bonded together or when they are apart? 

• Bonded Together
• Apart

What is the main difference between a polar covalent bond and a non-polar covalent bond?

• The number of electrons shared

• The type of atoms involved

• The distribution of electron density

• The energy level of the bond

What is the role of valence electrons in the formation of a chemical bond?

• They are lost during the process

• They are shared or transferred between atoms

• They remain unaffected

• They are only involved in ionic bonds

This could be the dot diagram of

• Mg

• Cl

• C

• O

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

What is the correct Lewis structure for NH₃?

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