Electronegativity

decreases

Down a family, electronegativity _____.

1.67

___ =< ionic bond

0.4, 1.67

___ =< polar covalent bond < ___

electronegativity

a measure of how strongly an atom attracts electrons within a chemical bond

0.4

nonpolar covalent bond < ___

nonpolar covalent

(bond) < 0.4

a measure of how strongly an atom attracts electrons within a chemical bond

(definition) electronegativity

polar covalent

0.4 =< (bond) < 1.67

ionic

1.67 =< (bond)

increases

Across a period, electronegativity _____.