A Period in History
I'm Keeping my Ion You
So You Think You Can Take my Electron
Chemicals Don't Reason, they "React"
I Should Have been in a Different "Family"
100

These scientists were the first to come up with a way to arrange the elements on the periodic table

Who is Lothar Meyer and Dmitri Mendeleev?

100

This best describes the general trend that atomic radius follows on the periodic table.

What is it decreases as you move right in a period and increases as you move down a group?

100
The amount of energy required to remove an electron from an element.
What is the ionization energy
100
This particle is responsible for chemical bonding.
What is the electron?
100
A family is the same as this on the periodic table
What is a vertical column?
200

This British Scientist re-arranged the Periodic Table to better fit each elements reactivity, in fact our modern periodic table is based on his work

Who is Henry Mosley?

200
Two or more ions that have the same electron configuration are said to be this
What is isoelectronic?
200
These elements have the highest ionization energies.
What are the Noble gases?
200
The most reactive non-metals on the periodic table belong to this group
What are the halogens?
200
These elements are known for their unique colors and multiple oxidation states.
What are the Transition Elements?
300
This property was first used to arrange the Periodic Table of the elements
What is the atomic mass?
300
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?
300
The third ionization energy for the alkaline earth metals is best explained by this property
What are the number of valence electrons?
300
The reason the alkali metals are so reactive are because of these 2 properties
What are low ionization energies and electronegativities?
300
These elements react to form volatile oxides and they react quite violently when placed in water!
What are the alkali metals?
400
This property is what is now used to arrange the elements on the periodic table.
What is the atomic number?
400
Magnesium ion is smaller than Calcium ion for this reason
What is being further down in it's group?
400
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
400
When looking at the periodic table, you can discover this trend in metallic character
What is it increases as you move to the left within a period and increases as you move down a group?
400
Elements that belong in a group have these particular things in common. (There are 3 things I am looking for)
What are chemical properties, physical properties, and similar electron configurations?
500
Several of the elements would have to be rearranged on the periodic table if it were still based on atomic mass. Give 3 examples of elements that would need to be rearranged.
What are K and Ar, Te and I, and U and Np?
500
You do not have to answer this in the form of a question. Please arrange the following elements based on increasing ionic size: Strontium Ion, Bromide, Selenide, and Rubidium Ion. Please give the correct symbols and charges
Sr 2+, Rb 1+, Br 1-, and Se 2-
500
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
500
Do not answer this in the form of a question. Arrange the following elements based on increasing non-metallic character: Chlorine, Oxygen, Fluorine, and Sulfur
Sulfur, Chlorine, Oxygen, and Fluorine
500
Elements in this family are most likely to gain 2 electrons to fill their valence shell.
What are the Chalcogens?
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