Chemistry Quiz Flashcards
Bohr Diagrams & Ions, Ionic Compounds, Multivalent Ions
What is a compound?
A compound is a pure substance in which the elements are chemically combined.
How is an Ionic compound formed?
An ionic compound is formed from one or more positively charged ion(s) and one or more negatively charged ion(s).
How is a Molecular compound formed?
When atoms of two or more different non-metals combine, a pure substance known as a molecular compound is formed.
How to do the Criss Cross method?
Crisscross the bonding capacity numbers and write them at the bottom of each element as subscripts.
What are the two naming systems?
IUPAC method
Classical method
What is the IUPAC naming
method for?
Names multivalent metal ions with the use of Roman numerals to indicate the different charges formed by one element.
What is the classical naming method for?
Names multivalent metal ions with the suffixes ~ic and ~ous to indicate the different charges formed by one element.
What charges do the suffixes ~ic and ~ous have?
Suffix ~ic represents ions with the higher charge.
Suffix ~ous represents ions with the lower charge.
How to find the number of protons?
Number of protons = atomic number
How to find number of electrons?
Number of electrons = number of protons - charge of atom
How to find number of neutrons?
Number of neutrons = Mass - number of protons
When drawing a Lewis structure, how many valence electrons do you draw if you have 4 valence electrons? How many do you draw if you have 7?
If it has 4 or less than you don’t draw any valence electrons.
If it has 5 or more than you draw all 8 valence electrons.
Having a complete valence shell is also known as __________?
Octet Role
How do you do the criss-cross method?
Criss-Cross the bonding capacity of each element and re-write them at the bottom of each element.
IUPAC Practice Question (FeBr2)
Iron (ll) bromide
