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Periodic Table Trends
History
Rules
Groups
100
The two trends that increase from left to right on the periodic table.
What are electron affinity and Ionization Energy
100
Dmitri Mendeleev
Who is the creator of the periodic table
100
Elements are most stable when their outermost electron shell is full. The innermost can only hold two, totaling 8.
What is the octet rule
100
odorless, colorless, monatomic, very low reactivity
What are noble gases
200
The trend that decreases from top to bottom
What is atomic radius
200
Groups and Periods/atomic number
What is the periodic table separated by
200
When ordered by atomic number, the physical and chemical properties tend to recur.
What is periodic law
200
Most elements on the periodic table belong to this group.
What are metals
300
The two opposite trends. One increases from bottom left to top right, and the other decreases from top right to bottom left respectively
What is Nonmetallic Character and Metallic Character
300
Copper
What is the first discovered element on the table
300
The number of protons is equal to? Which when added to neutrons equals?
What are electrons and atomic mass/weight
300
High electronegativity, low boiling points/melting points, brittle, poor conductors
What are the properties of nonmetals
400
Dmitri Mendeleev
Who is the creator of the periodic table