Covalent Bonding (AI) Flashcards
(15 cards)
What is a covalent bond?
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
True or False: Covalent bonds typically occur between metal and non-metal atoms.
False
What type of elements usually form covalent bonds?
Nonmetals
Fill in the blank: A molecule formed by covalent bonds is called a ______.
molecule
Which of the following is an example of a covalent bond? A) NaCl B) H2O C) CaO
B) H2O
What is the difference between a single covalent bond and a double covalent bond?
A single covalent bond involves one pair of shared electrons, while a double covalent bond involves two pairs of shared electrons.
True or False: Covalent bonds can be polar or nonpolar.
True
What determines whether a covalent bond is polar or nonpolar?
The difference in electronegativity between the bonded atoms.
What is the term for the representation of a covalent bond using a line between two atoms?
Lewis structure
Which molecule is an example of a nonpolar covalent bond? A) HCl B) Cl2 C) NH3
B) Cl2
Fill in the blank: In covalent bonds, atoms achieve a stable electron configuration by ______ electrons.
sharing
What is a coordinate covalent bond?
A coordinate covalent bond is a type of covalent bond where one atom donates both electrons to the bond.
True or False: Covalent compounds generally have high melting and boiling points.
False
What is the significance of bond length in covalent bonding?
Bond length is the distance between the nuclei of two bonded atoms, which affects the strength and stability of the bond.
What type of geometry is commonly associated with molecules that have tetrahedral shape due to covalent bonding?
Tetrahedral geometry
