Elements
Fe is the symbol of what element?
Iron
What element is represented by the Atomic number 63?
Eu
What is the Atomic Mass of Cu?
63.55
What is a period?
The horizontal numbers from top to bottom
Ho made the periodic table?
Dmitri Mendeleev
What Element is represented by the Atomic number 89?
Actinium (AC)
What element is represented by the Atomic number 99?
Es
How do you calculate Atomic Mass?
# of protons+# of Neutrons
What is a group?
When was the periodic table made?
1986
Where in the Element square is the Atomic Number?
In the Top
What element is represented by the Atomic number 22?
Ti
What element is represented by the Atomic Mass of 65.55?
Zn
In what period is beryllium?
Beryllium is placed in the 2nd period
How old is the periodic table?
149 years old
List three examples of an alkali metal
Lithium, Sodium, Cesium, Potassium, Hydrogen, Francium.
What element is represented by the Atomic number 30?
Zn
What is the Atomic Mass of praseodymium?
(145)
In what group is Lanthanum?
Group 6
What are the first Three elements?
Hydrogen, Helium,Lithium
Give an example of an noble gas
He, Ne, Ar, Kr, Xe, Rn
What element is represented by the Atomic number 21?
Sc
what is the atomic mass of beryllium?
9.01
In what group is calcium in?
Group 2
How many elements where added this year (2016)?