1
2
3
4
5
100
Mendeleev is credited with developing the first successful
What is the periodic table?
100
The elements in group 17 are known by what name?
What are halogens?
100
Alkaline Earth Metals are located in what group of the periodic table?
What is group 2?
100
How many valence electrons does Sulfur (S) have?
What is 6?
100
Ra
What is Radium?
200
The atomic number of the second element in period 3.
What is 12?
200
What groups is phosphorus in?
What is group 15?
200
Group 18 on the periodic table.
What are noble gases?
200
Group 18 has how many valence electrons?
What is 8?
200
Ne
What is Neon?
300
To which group of the periodic table does lithium and potassium belong?
What is the Alkali metals?
300
What period is oxygen in?
What is period 2?
300
A metal is called malleable if it is easy to
What is hammer into sheets?
300
Lead (Pb) has how many valence electrons?
What is 4?
300
Rn
What is Radon?
400
To which group of the periodic table does fluorine and chlorine belong?
What is the halogens?
400
Transition elements are found in which of the following group(s) of the periodic table?
What are groups 3-12?
400
This set of elements are radioactive?
What are actinides?
400
Kr
What is Krypton?
400
Ba
What is Barium?
500
Mendeleev predicted the existence of several elements and their ________.
What are properties?
500
The process that changes one element into another different element.
What is transmutation?
500
A solution of two or more metals.
What is an alloy?
500
K
What is Potassium?
500
Fr
What is Francium?
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