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Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
100
The modern periodic table organizes elements according to this.
What is increasing atomic number?
100
Being shiny, malleable, and conductors are properties of this class of elements.
What are metals?
100
Elements in the same group share this characteristic with regard to their atomic structure.
What is the same number of valence electrons?
100

the father of the periodic table

Who is Dmitri Mendeleev?

100

1 valence electron

How many valence electrons do the alkali metals have?

200
The three classes of elements are these.
What are metals, nonmetals and nonmetals?
200
Being brittle, dull, and insulators are properties of this class of elements.
What are nonmetals?
200
The very reactive elements in group 1A are known as this.
What are alkali metals?
200

father of the modern periodic table 

Who is Henry Moseley?

200

3 valence electrons

How many valence electrons does the boron family have?

300
This class of elements are good conductors of heat and electric current.
What are metals?
300
Silicon, Boron, and Tellurium are examples of this class of elements.
What are metalloids?
300
The reactive elements in group 2A are known as this.
What are alkali earth metals?
300

by atomic mass

How was Mendeleev's periodic table arranged?

300

7 valence electrons

How many valence electrons do the halogens have?

400
This class of elements are poor conductors of heat and electricity.
What are nonmetals?
400
The vertical columns on the periodic table are called this.
What are groups?
400
The elements in group 7A are known as this.
What are the halogens?
400

by atomic number

How is Moseley's periodic table arrangeddD?
400

How many valence electrons the transition metals have

The number of valence electrons varies for the transition metals

500
This class of elements have properties of both metals and nonmetals.
What are metalloids?
500
The horizontal rows on the periodic table are called this.
What are periods?
500
The nonreactive elements in group 8A are known as this.
What are the noble gases?
500

Elements are arranged on the periodic table based on their chemical and physical properties.

What is the periodic law?

500

Unlike the rest of the noble gases, this element only has 2 valence electons.

What is helium?