Sciencetists
He was looking for patterns in elements
Who is Dmitri Mendeleev?
Found to the left of the zigzag line
What are metals
What does Carbon represent?
Name
These elements are soft enough to be cut with a knife and are the most reactive
What is Group 1: Alkali metals?
What lines have Similar physical and chemical properties?
What are Groups?
He rearranged the elements according to the atomic number
Who is Henry Moseley?
Where are nonmetals found?
What is Found to the right of the zigzag line?
What does 6 represent?
what is Atomic Number?
Nonmetals only. One is very reactive. The other is basically not reactive at all.
What is Group 17-18?
Border the zigzag line
What are Metalloids?
He Divided the elements according to atomic mass
Who is Dmitri Mendeleev?
Each horizontal line (left to right)
What are periods?
What does 12.0 represent?
What is Atomic number?
Not as reactive as Alkali metals
What is Group 2: Alkaline Earth Metals?
What element/group element?
What is hydrogen?
What is Periodic Law?
What is states that the chemical and physical properties are a periodic function of their atomic number?
Each Column
What are Groups
What does C represent?
Groups that include Metalloids. Board the zigzag line, and Not all are metalloids
What are Groups 13-16?
Considered Transition Metals. Less Reactive than groups 1 & 2
What are Groups 3-12?
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