The Table
Who is the Russian chemist who is credited with the creation of the Periodic Table?
Dimitri Mendeleev
How many elements are currently on The Periodic Table?
118
This group contains elements with properties intermediate between those of metals and nonmetals.
Metalloids /Semimetals
Who is the element Einsteinium named after?
Albert Einstein
The chemical elements are the basic substances that make up all _________________.
matter
The _____________ number is the number of protons in the nucleus of the element.
atomic
How many columns are there on The Periodic Table?
18
_____________ is the term given for the columns of the periodic table.
Groups
What type of game led Dimitri Mendeleev to develop the Periodic Table?
solitaire or card games
Almost __________ % of the periodic table is composed of metals.
75
What are the 3 main groups that the Periodic Table is broken into?
Metals, NonMetals and Metalloids
The bottom number in each element tile is the atomic ___________ or the atomic mass.
weight
What is the only letter of the alphabet not used as an abbreviation on The Periodic Table?
J
Who published the FIRST periodic table?
Lothar Meyer
What 3 categories are Nonmetals further divided into?
Nonmetals
Halogens
Noble Gases
How many elements on The Periodic Table are found in nature?
90
What did Scientists observe to discover Helium?
The Sun
Each horizontal row of the Periodic Table contains elements that have the same number of atomic ____________.
Periods
The Periodic Table helps ____________ think about the elements and their properties.
chemists
Which element is unique and known to form up to 10 million compounds?
Carbon