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100
Father of the periodic table
Dmitri Mendeelve
100
The first periodic table was organized by
Atomic mass
100
Scientist that created the modern periodic table
Henry Moseley
100
The modern periodic table was organized by
atomic number
100
What states that the chemical and physical properties of elements are periodic functions of their atomic numbers?
Periodic law
200
What means a substance can be flatten to flat sheets?
Malleable
200
What are the horizontal rows of elements on the Periodic table?
Periods
200
What means a substance can be drawn into thin wires?
ductile
200
_____ also called the ______, are the vertical columns of the periodic table
Groups, family
200
What tells us the number of protons in an atom?
Atomic number
300
Tells the number of protons and neutrons in an atom
Atomic mass
300
Number of electrons in the outer most layer
Valence elements.
300
Group one of the periodic table
Alkali metals
300
Group 2
Alkaline- earth metals
300
Group 3-12
Transition metals
400
Group 13
Boron
400
Group 14
Carbon
400
Group 15
Nitrogen group.
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