Scientist
This Russian chemist and teacher arranged all elements discovered at the time by their atomic mass creating the draft of the periodic table. What was his name?
Dimitri Mendeleev
What is the Periodic table?
A chart of elements arranged into rows and columns according to their physical and chemical properties
What is the Atomic number of Oxegen?
8
What are the three categories from left to right on the periodic table?
Metals, Metalloids, Non-metals
What was wrong with Mendeeve's periodic table?
Its was arranged by atomic mass not by atomic number
What is a period?
Follow up what is a group?
Periods are rows on the periodic table while groups are columns.
Chemical symbol for Neon?
Ne
What is the name of the one Non-metals found on the left side of the periodic table?
Hydrogen
Decades after Mendeleev structured the first draft of the periodic table this scientist found that if elements were listed according to increasing atomic number columns would have similar properties. Who was this scientist?
Henry Moseley
Definition of Non-metals
Elements that have no metallic properties
What group is Carbon in?
16
What is the name of the only metal at room temperature?
Mercury
This chemist developed the electron dot diagram
Gilbert Lewis
Definition of Semi-Conductor
Conducts electricity at high temperatures, but not at low temperatures
What is Silicons category on the periodic table?
Metalloid
What are the names of the elements in both groups 1 and 2?
Alkaline meatless and Alkaline earth metals
What year did Mendeleev develop the first periodic table?
1869
Definition of Valence Electron
Is an outermost electron of an atom that participates in chemical bonding
Transition Elements
What are the two rows on the bottom of the periodic table called?
The Lanthanide and Actinide series