Covalent Bonds Flashcards
What type of bond is formed when two atoms share electron pairs?
Covalent bond
Multiple Choice: Which of the following best describes the nature of a covalent bond? A) Ionic B) Metallic C) Shared electrons D) Van der Waals
C) Shared electrons
How does the distance between two nuclei affect the strength of their electrostatic attraction?
As the distance between the nuclei increases, the strength of the electrostatic attraction decreases.
What role do electron pairs play in the stability of a molecule?
Electron pairs provide stability by creating a balance of forces between the nuclei.
True or False: The sharing of electron pairs can occur between more than two nuclei.
False
Short Answer: What is a molecule formed by covalent bonds called?
A covalent molecule
What type of charge do the nuclei of atoms possess?
Positive charge
Multiple Choice: Which particles are primarily involved in electrostatic attraction in covalent bonding? A) Protons B) Neutrons C) Electrons D) Nuclei
C) Electrons
What effect does electronegativity have on the sharing of electrons?
Higher electronegativity leads to a stronger attraction for shared electrons.
True or False: In a polar covalent bond, electrons are shared equally between two nuclei.
False
What is the result of unequal sharing of electrons in a covalent bond?
The formation of a polar covalent bond.
What happens to the shared pairs of electrons in a double bond?
Two pairs of electrons are shared between the two nuclei.
Multiple Choice: How many total electrons are shared in a triple bond? A) 2 B) 4 C) 6 D) 8
C) 6
What type of molecules are formed when atoms share electrons unevenly?
Polar molecules
True or False: A covalent bond can form between atoms of different elements.
True
What is the basic geometric shape of a tetrahedral molecule?
A tetrahedron.
How many atoms are typically involved in a tetrahedral arrangement?
Four atoms.
True or False: In a tetrahedral structure, bond angles are approximately 109.5 degrees.
True.
Fill in the blank: The central atom in a tetrahedral molecule is usually ______.
a carbon atom.
Fill in the blank: In tetrahedral geometry, the central atom is surrounded by ______ bonds.
four.
