atomic combinations Flashcards
(8 cards)
1
Q
chemical bond
A
a mutual attraction between two atoms resulting from the simultaneous attraction between their nuclei and outer electrons
2
Q
covalent bond
A
the sharing of electrons between two atoms to form a molecule
3
Q
molecule
A
a group of two or more atoms covalently bonded and that function as a unit
4
Q
bonding pair
A
a pair of electrons that is shared between two atoms in a covalent bond
5
Q
lone pair
A
a pair of electrons in a valence shell of an atom that is not shared with another atom
6
Q
electronegativity
A
a measure of the tendency of an atom in a molecule to attract bonding electrons
7
Q
bond energy
A
the energy needed to break one mole of its molecule into separate atoms
8
Q
bond length
A
the average distance between the nuclei of two bonded atoms
