chemical bonding Flashcards
(42 cards)
which group of elemets is chemically unreactive
noble gasses
Ionic bonds
____ will lose electrons forming a positive ion called a _____
_____ will gain electrons forming a negativie ion called _____
Metals, cations
Nonmetals, anions
The attraction between cations and anions is called an ____ bond
ionic
A regular repeating shape called a______
Crystal lattice
Melting points on Ionic Bonds are
generally high
Boiling points on Ionic bonds are
generally high
ionic solids are ____but not ____
Brittle, malleable
when Ionic bonds are dissolved they can conduct
electricity
all metal atoms have atleast _____ _____ ____
1 valence electron
in metallic bonds when bonding they do not lose
valence electrons
the valence level of metal atoms ___ in the atoms
overlay
the crowded condition of metal atoms can be reffered to as the
electron sea
the electrons in a metallic bond are
delocalized
metalliods changing shape with force is called
malleability
metals can be drawn out into thin wires called
ductility
the surface of a metal can be made very smooth so metals are
luster
the moving electrons in metals can form
electricity
metals with s and d electrons are ___ then metals with just s electrons
harder
nonmetals can attain a noble gas configuration by _____ valence electrons with other nonmetals
sharing
when valence electron pairs are shared between two atoms, a _____ bond is formed
covalent
melting points on covalent bonds are
lower
boiling points on covalent bonds are
lower
Covalent Bonds usually exist at
liquids or gasses at room temp