vocab
vocab
vocab
vocab
vocab
100
an atoms nucleus contains these
What are protons and neutrons
100
row on the periodic table
What is a period
100
group of symbols that shows the ratio of elements in a compound
What is a chemical formula
100
an orderly three dimensional arrangement
What is a crystal
100
when 2 atoms share electrons
What is a covalent bond
200
electrons that have the highest energy
What valence electrons
200
Group 18 on the periodic table; elements are stable
What are Noble gases
200
tells the ratio of elements in a compound
What is subscripts
200
neutral group of atoms joined by covalent bonds
What is a molecule
200
True or False molecular compounds are good conductors
What is False
300
the force that holds atoms together as a result of rearrangement of electrons
What is chemical bond
300
a way to demonstrate the number of valence electrons in an atom
What is electron dot diagram
300
the attraction between to oppositely charged ions
What is ionic bond
300
When 2 atoms share 2 pairs of electrons
What is a double bond
300
A covalent bond in which electrons are shared equally
What is a nonpolar bond
400
an atom or group of atoms with an electric charge
What is an ion
400
When a neutral atom loses a valence electron it becomes this
What is a positive ion
400
In an ionic compound the name of this ion comes first
What is postive
400
a compound that is made up of molecules
What is a molecular compound
400
an attraction between a positive metal ion and the electrons surrounding it
What is metallic bond
500
Ions made of more than one atom
What are polyatomic ions
500
True or False metals like to lose electrons
What is true
500
A mixture of 2 or more elements, at least one of which is a metal
What is an alloy
500
If a molecule has a negatively charged end and a positively charged end it is this
What is polar
M
e
n
u