Vocabulary
Atoms, Bonding, and the Periodic Table
Ionic Bonds
Covalent Bonds
Bonding in Metals
100
A representation of the valence electrons in an atom, using dots.
What is electron dot diagram?
100
these are described as:
loosely held by the nucleus
shown on electron dot diagrams
transfered or shared in bonding
What are valence electrons?
100
An atom or group of atoms that has an electric charge.
What is an ion?
100
A covalent bond is called this if the atoms equally share one or more pairs of electrons.
What is nonpolar?
100
An attraction between a positive metal ion and the electrons surrounding it.
What is metalic bond?
200
An ion that is made of more than one atom.
What is a polyatomic ion?
200
the number of these remains the same from top to bottom in a group in the periodic table.
What is valence electrons?
200
These ions are composed of more than one atom.
What are polyatomic ions?
200
A molecule in which the polar covalent bonds to not cancel out will be this.
What is polar?
200
The following are characteristics of this:
electrical conductivity
ability to be hammered into sheets
luster
What is metallic bonding?
300
A chemical bond formed when atoms share three pairs of electrons.
What is a triple bond?
300
Elements in Group 17, the halogen family, are very reactive because their atoms have this many valence electrons.
What is seven?
300
This type of ion is formed when an atom loses an electron.
What is a positive ion?
300
In a double bond, this many electrons are shared.
What is four?
300
This is a mixture of two or more elements that has the properties of a metal.
What is an alloy?
400
A covalent bond in which electrons are shared unequally.
What is polar bond?
400
Most atoms become less reactive after a change toa total numver of this many valence electrons.
What is eight?
400
A neutral group of atoms joined by covalent bonds is called this.
What is a molecule.
500
An attraction between a positive metal ion and the electrons surrounding it.
What is a metallic bond?
500
Represented by this picture
What is electron dot diagrams
500
When a compounds written like this:
H2O, MgCl2, NaCl
What is chemical formula?
500
A bond represented by this model of CO2
What is a nonpolar bond?