A Period in History
This scientist was the first to come up with a way to arrange the elements on the periodic table
Dmitri Mendeleev?
The amount of energy required to remove an electron from an element.
What is the ionization energy
This particle is responsible for chemical bonding.
What is the electron?
A family is the same as this on the periodic table
What is a vertical column? or Group
The scientist who developed the atomic structure into energy levels
Bohr & Rutherford
These elements have the highest ionization energies.
What are the Noble gases?
The most reactive non-metals on the periodic table belong to this group
What are the halogens?
These elements are known for their unique colors and multiple valence states.
What are the Transition Elements?
This property was first used to arrange the Periodic Table of the elements
What is the atomic mass?
This particular property of elements can be used to explain why cations get smaller when they form ions and why anions are larger when they form ions.
What is the effective nuclear charge?
The reason why there are 2 ionization energies for beryllium.
What are the number of valence electrons?
The reason the alkali metals are so reactive are because... (use trends!)
What are low ionization energies OR low electronegativities?
These elements react quite violently when placed in water and are usually stored in oil!
What are the alkali metals?
This property is what is now used to arrange the elements on the periodic table.
What is the atomic number OR proton number?
Magnesium ion is smaller than Calcium ion for this reason
What is being further down in it's group?
As we move up a group on the periodic table the ionization energy increases for this reason.
What is due to the fact that the valence electrons are closer to the nucleus
When looking at the periodic table, you can discover this trend as more negative numbers as you move across the period
what is electron affinity
Elements that belong in a group have these particular things in common.
same amount of valence electrons
these have unstable nuclei
radioisotopes
which is greater the calcium ion or the calcium atom?
calcium atom
You do not have to answer this in the form of a question. Please arrange the following elements based on decreasing ionization energy: Gallium, Krypton, Calcium and Arsenic
Krypton, Arsenic, Calcium, and Gallium
Do not answer this in the form of a question. Arrange the following elements based on increasing electronegativity: Chlorine, Oxygen, Fluorine, and Sulfur
Sulfur, Chlorine, Oxygen, and Fluorine
Elements in this family are most likely to gain 2 electrons to fill their valence shell.
group 16