The History and Arrangement of the Periodic Table

Question 1

Which element is a halogen?

Revolt · Accepted Answer

bromine

Question 2

Which scientist established the law of octaves?

Revolt · Accepted Answer

John Newlands

Question 3

How did Moseley establish a more accurate periodic table?

Revolt · Accepted Answer

by arranging the elements according to atomic number instead of atomic mass

Question 4

Who is credited with creating the first periodic table?

Revolt · Accepted Answer

Dmitri Mendeleev

Question 5

Which element is placed in the same period as ruthenium but has a higher atomic number than it?

Revolt · Accepted Answer

silver

Question 6

How did the work of Dmitri Mendeleev differ from that of John Newlands in the development of the periodic table?

Revolt · Accepted Answer

Mendeleev predicted elements that would later be discovered.

Question 7

Moseley made revisions to the periodic table that resolved some of the problems with Mendeleev’s version. Which of these was a result of his revisions to the periodic table?

Revolt · Accepted Answer

The revised periodic table could account for variations resulting from isotopes.

Question 8

Members of which group easily lose an electron to form a +1 cation?

Revolt · Accepted Answer

alkali metals

Question 9

How was the work of Newlands similar to that of Mendeleev on the periodic table?

Revolt · Accepted Answer

They both arranged the elements in order of increasing atomic mass.

Question 10

Who wrote the first modern chemical textbook?

Revolt · Accepted Answer

Antoine Lavoisier

The History and Arrangement of the Periodic Table Answers

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