Chemistry Ch. 7
when an aluminum Adam loses its balance electrons what is the resulting charge on the resulting ion
3+
How many valence electrons does an atom of any element in group 6a have
6
Coordinate covalent bond
A covalent bond between two Atoms in which the shared electron pair comes from only one of the atoms
Polar bond
A covalent bond between two atoms of different Electronegativities in which to the bonding electrons are not shared equally
Nonpolar covalent bond
A covalent bond formed by the equal sharing of bonding electrons by two Atoms
Triple covalent bond
A covalent bond in which three pairs of electrons are shared by two bonded atoms
Double covalent bond
A covalent bond involving two pairs of electrons; each Atom donates one pair of electrons to the bond
Electron dot structure
A depiction of valence electrons Around the symbol of an element
Alloy
A mixture of two or more elements, at least one of which is a metal
A cat is any Adam or group of Adams with..
A positive charge
Halide ion
An anion of a halogen
Valence electron
An electron in the highest occupied energy level of an atom
Octet rule
Atoms in most compounds tend to achieve the electron configuration of a noble gas
A covalent bond forms when
Atoms share the same electrons
Metallic bond
Attraction of valence electrons for positive metal ions
Structural formula
Chemical formula that shows the arrangement of Atoms in molecules and polyatomic ions
Ionic compound
Compound of cations and anions
Metals are good conductors of electricity because they...
Contain mobile valence electrons
An ionic compound is
Electrically neutral, held together by ionic bonds and composed of anions and cations
Hydrogen bond
Force that occurs when a hydrogen Atom is covalently bonded to a very electronegative Atom and is weakly bonded to an unshared pair of electrons in the same or nearby molecule
What is not a characteristic of most ionic compounds
Has a low melting point
Which of these elements does not exist as a diatomic molecule? I? F? H? He?
He
Dispersion force
Interaction caused by the motion of elements
Which of the following compounds is not covalent? SCl2 KCl HCl S2Cl2
KCl
What element when combined with chlorine and most likely form an ionic compound
Lithium
Formula unit
Lowest whole number ratio of ions in an ionic compound
If bonding a pair of electrons is an equally shared between two Atoms the bond is...
Polar covalent
Chemical formula
Shows the kinds and numbers of atoms in the smallest representative unit of a substance
Molecular formula
Shows the kinds and numbers present in the molecule of a compound
Network solid
Substance in which all of the Atoms are covalently bonded to each other
Informing chemical bonds of atom tend to attain
The electron configuration of noble gas Atoms
Ionic bond
The force of attraction binding oppositely charged ions together
Coordination number
The number of ions of opposite charge surrounding each ion in a crystal
The electron configuration of a fluoride ion, F-, is
The same as that of a neon atom
A metallic bond is a bond between
Valence electrons and positively charged metal ions
How many valence electrons does an atom of any halogen have
...7
