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History of the Table
Types of Elements
Periodic Trends
Electrons
RANDOM
100
This man organized the periodic table
Who was Mendeleev
100
This group contains noble gases
What is the 18th group.
100
Which element is the most electronegative?
What is flourine?
100
The number of electrons in carbon
What is four
100
Ar, Kr, and Xe are all...
What is Noble gasses
200
These were thought to be the original four elements that made up all of earth.
What is earth, wind, fire, water.
200
A positive ion is called a...
What is a cation
200
Which element has the largest radius?
What is Cesium?
200
Electron Cloud
Where electrons are found around an atom
200
The periodic law organizes elements according to their...
What are properties?
300
A horizontal (left to right) row in the periodic table is called a
What is a period
300
Elements in the 17th column are called
What are halogens.
300
As we move from left to right, ionization energy...
What is increases?
300
Valence Electrons
What are the outermost electrons in an atom
300
The most reactive group in the non-metals
What is halogens.
400
Mendeleev left spaces in his period table to represent
What are elements that had not been discovered yet.
400
This elements electron configuration ends in 3p4
What is Sulfur
400
As we move down a column, electronegativity...
What is decreases
400
s,p,d,f
What are the four sub levels of electrons.
400
When ionization energy is put into an atom, what is removed?
What is an electron
500
Most elements are organized in an increasing fashion based on their.. .
What is atomic mass .
500
This element has gained or lost electrons
What is an ION
500
This block contains alkali metals
What is the s block
500
The number of valence electrons noble gasses have.
What is 8.
500
The radioactive elements with atomic numbers 90-103 are called
What is an actinide