8.1
8.2
8.3
9.1
9.2
100
dots distributed around the element’s symbol.
What is electron dot diagram
100
number of ions that immediately surround an ion of the opposite charge within a crystal lattice.
What is coordination number
100
mixture composed of two or more elements, at least one of which is a metal.
What is an alloy
100
when two atoms are joined by the sharing of one pair of electrons.
What is Single covalent bond
100
one of the five learned so far: linear, trigonal planar, tetrahedral, trigonal bipyramidal, or octahedral.
What is an electron domain of geometry
200
give each atom eight valence electrons.
What is the octet rule
200
lowest whole number ratio of the ions present in an ionic compound.
What is a formula unit
200
most efficient way to pack spherical objects.
What is closest packing
200
formed by atoms that share two pairs of electrons.
What is a double covalent bond
200
three-dimensional arrangement of atoms in a molecule.
What is Molecular geometry
300
describe two atoms or ions that have the same electron configuration.
What is isoelectronic
300
electrostatic force that holds ions together in an ionic compound.
What is an ionic bond
300
attraction of the stationary metal cations to the surrounding mobile electrons.
What is metallic bond
300
is a covalent bond in which one of the atoms contributes both of the electrons in the shared pair
What is a coordinate covalent bond
300
states that a molecule will adjust its shape so that the valence electron pairs stay as far apart from each other as possible.
What is VSEPR
400
negatively ions formed by gaining one or more electrons.
What is an anion
400
electrically neutral compound consisting of positive and negative ions.
What is an ionic compound
400
conduct electricity and heat very well because of their free-flowing electrons.
What is a Metal
400
pair of electrons in a Lewis electron-dot structure that is not shared between atoms.
What is a lone pair
400
outermost occupied shell of electrons in an atom
What is a Valence shell
500
Found in the d-block
What is a Transition metals
500
positively charged ion
What is a cation
500
very important class of alloys.
Steel
500
molecule that contains exactly two atoms.
What is a diatomic molecule
500
What is phosphorus pentachloride Shape
Trigonal bipyramidal.
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