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Periodic History

History and structure of the Periodic Table

QuestionAnswer
Father of the modern periodic table Dmitri Mendeleev
Name of the elements in group 1 Alkali metals
Name of elements in group 2 Alkaline Earth Metals
Large group of metals between group 2 and 3 Transition Metals
Name of group 7 Halogens
Meaning of the word Halogen Salt maker
Name of group 8 Noble Gases
Name of the 2 periods together that are taken out of the main block and put underneath the periodic table Rare Earth Metals
What is the ratio of metals to non-metals in the periodic table? 3/4 to 1/4
Johannes Dobereiner organized elements into groups of _____ called ___________ 3, triads
John Newlands arranged the elements in rows of _________ called ______________ 8, Octaves
What does "periodic" mean? At regular intervals
What is the Periodic Law When the elements in the periodic table are arranged in order of atomic number their properties repeat periodically
What are the vertical columns in the table called? Groups
What are the horizontal rows in the table called? Periods
What do we call metals that behave like non-metals and non-metals that behave like metals? Metalloids
Differences between the modern and Mendeleevs periodic table
Father of the modern periodic table Dmitri Mendeleev
Name of the elements in group 1 Alkali metals
Name of elements in group 2 Alkaline Earth Metals
Large group of metals between group 2 and 3 Transition Metals
Name of group 7 Halogens
Meaning of the word Halogen Salt maker
Name of group 8 Noble Gases
Name of the 2 periods together that are taken out of the main block and put underneath the periodic table Rare Earth Metals
What is the ratio of metals to non-metals in the periodic table? 3/4 to 1/4
Johannes Dobereiner organized elements into groups of _____ called ___________ 3, triads
John Newlands arranged the elements in rows of _________ called ______________ 8, Octaves
What does "periodic" mean? At regular intervals
What is the Periodic Law When the elements in the periodic table are arranged in order of atomic number their properties repeat periodically
What are the vertical columns in the table called? Groups
What are the horizontal rows in the table called? Periods
What do we call metals that behave like non-metals and non-metals that behave like metals? Metalloids
Differences between the modern and Mendeleevs periodic table No gaps in modern, More elements in modern Transition metals in separate group in modern Increasing atomic number in modern not atomic mass Noble gases are in modern table
Who discovered atomic number enabling us to fill the gaps in the table? Henry Mosely
Created by: ChemistryWaltham