Chemical bonding Flashcards
when does ionic bonding occur?
when metal + non-metal elements chemically bond
How are oppositely charged ions held together in ionic bonding?
strong electrostatic forces of attraction
what happens in ionic bonding?
metal atom will lose 1 valence electron to form a cation while the non-metal atom will gain 1 valence electron to form an anion, attaining stable electronic configuration
what structure do ionic compounds have?
giant ionic lattice structure
at what states can ionic compounds conduct electricity?
molten and aqueous state
why do ionic compounds have high melting and boiling points?
High amount of energy is needed to overcome the strong electrostatic forces of attraction
when happens in covalent bonding?
when non-metallic atoms share valence electrons to attain stable electronic configuration
when does covalent bonding occur?
when non-metal atoms chemically bond
what structure do covalent substances have?
simple molecular structure
why do covalent substances have low melting and boiling point?
small amount of energy is needed to overcome the weak intermolecular forces of attraction
in what states do covalent substances conduct electricity?
they do not conduct electricity in any states (except acids)
