The Development of the Periodic Table

1. Who first grouped elements in families (similar chemical and physical properties)?

• Newlands

• Mendeleev

• Dobereiner

• Moseley

In what year did Dobereiner develop his Periodic Table of Elements?

• 1913

• 1864

• 1870

• 1829

Which scientist arranged the 60 known elements in columns of increasing atomic mass so that each column contained seven elements?

• Newlands

• Meyer

• Mendeleev

• Moseley

In what year did Newlands develop his Periodic Table of elements?

• 1913

• 1864

• 1869

• 1829

Who arranged the known elements into horizontal rows of increasing atomic mass leaving gaps for as yet undiscovered elements?

• Mendeleev

• Meyer

• Newlands

• Moseley

In what year did Mendeleev develop his Periodic Table of Elements?

• 1870

• 1869

• 1829

• 1913

How accurate was Mendeleev's Periodic Table of Elements?

• Fairly

• Very

• Extremely

• Not very

Who constructed a similar table to Mendeleev based on increasing atomic mass but did not leave gaps?

• Moseley

• Meyer

• Newlands

• Dobereiner

In what year did Meyer release his Periodic Table of Elements?

• 1829

• 1913

• 1869

• 1870

Who suggested that the physical and chemical properties were related to the atomic number, rather than atomic mass?

• Meyer

• Mendeleev

• Moseley

• Newlands