Chem Worksheet 4-2
Any given element can have more than one isotope. To distinguish between the different isotopes
of an atom, the element is named with its mass number, for example lithium-7. Remember that the
mass number is the n
Chem Worksheet 5-6
An electron configuration is simply a list of the orbitals that contain electrons for a given element.
The orbital designation is followed by a superscript number that tells how many electrons are found in
Periodic Trends Ionization Energy
Chem Worksheet 6-2
Ionization describes the process in which an electron is removed from an atom in the gaseous state.
The amount of energy required to remove the outer electron is called the first ionization energ
Periodic Trends Atomic Radius
Chem Worksheet 6-3
The radius of an atom describes the distance between the nucleus and the
outermost electron. This distance is very small so it is often reported in picometers
(10-12 m) or