Periodic Groups
These are the two groups at the very bottom of the Periodic Table of Elements
What are the lanthanides and the actinides?
Nitrogen is an example of this type of element
What is a nonmetal?
The idea that everyday elements like lead could be transformed into silver and gold.
What is alchemy?
Columns refer to _______________ and rows refer to ___________
What are groups and periods?
Density, malleability, boiling point, and melting point are examples of this
What are physical properties?
Also known as the Fluorine-containing group, group 17 is commonly called this.
What are the halogens?
These elements are usually classified as being semiconductors, malleable, and sometimes have a metallic luster
What are metalloids?
In 1869 by the Russian chemist Dmitri Mendeleev
When was the Periodic Table of Elements as we know it today created?
This is how Mendeleev organized his version of the Periodic Table of Elements
What is in order of increasing atomic mass?
Nonmetals gain electrons to form __________ and metals lose electrons to form __________
What are anions? What are cations?
Alkali metals and alkaline earth metals
What are groups 1 and 2 on the periodic table of elements?
Metals all share the following characteristics:
What is they are:
Ductile
Electrically conductive
Solid
Aristotle's idea about where all of the elements come from
What is the four elements: air, fire, water, and earth?
As you move from left to right across periods on the periodic table of elements, this is the trend for atomic radius.
What is the atomic radius decreases?
The first 98 elements are found in nature. This is where the remaining elements can be found.
What is in a lab setting?
Commonly used when writing out condensed electron configurations, group 18 is known as this.
What are the noble gases?
All of the following are examples of __________ with the exception of Chlorine:
Sodium
Tin
Lead
Chlorine
Copper
What are metals?
The first person to organize the periodic table according to atomic mass.
Who is John Newlands?
Groups 3-12 on the periodic table are known as this
What are the transition metals?
Groups 1,2, and 13-18 are known as these type of elements
What are main group elements?
The formal name for the group on the Periodic Table of Elements which consists of Oxygen, Sulfur, Selenium, Tellurium, and Polonium.
What are the chalcogens?
The formal name for the following elements: Boron, Germanium, Silicon, Antimony, Tellurium, and Arsenic
What are the metalloids?
Dobereiner's way of organizing the periodic table of elements
What is according to his triad system?
Three effects to the size of an atom
What are as follows:
1) the number of subshells
2) increasing attraction between the nucleus and electrons
3) atomic shielding
The only letter not on the Periodic Table of Elements
What is the letter J?