Show:
Questions
Responses
Print
Atomic Theory
Periodic Table
Metals
Nonmetals
Radioactive elements
100
The father of the atomic theory
Who is Dalton
100
the first one is made in...
What is 1869
100
The most reactive metals
What is the Alkali Metals
100
1. the only nonmetal and this "family" in the periodic table. 2. the most reactive element in the periodic table
What is the Carbon family and Hydrogen
100
Neptunium and Plutonium
What is transuranium elements
200
Electrons
Who is J.J Thompson
200
The Vertical rows
What is Groups
200
The second most reactive metals
What is the Alkaline Earth Metals
200
Nitrogen and Phosphorous
What is the Nitrogen family
200
Albert Einstein
What is Einstinium
300
"most of an atom is empty space"
Who is Rutherford
300
the Horizontal rows
What is Periods
300
All of these are solids except mercury.
What is the Transition Metals
300
Oxygen, Sulfur, Selenium
What is the Oxygen family
300
element named after the Father of the Periodic table
What is Mendelevium
400
Protons
Who is Rutherford
400
The heaviest element
What is Ununoctium
400
These metals are in groups 13 to 17
What is the Metals in mixed groups
400
"Salt Forming"
What is Halogen
400
These elements have not net been officially confirmed.
What is 113 to 118
500
each electron has a specific orbit
What is Bohr
500
The lightest element that is a metal
What is Lithium
500
Laser range finders and elements made in factories
What is Lanthanides and Actinides
500
Helium, Neon, Argon, Krypton, Xenon, Radon, Ununoctium
What is the Noble Gases
500
Uranium-238 half life
What is 4.5 billion years