Answers26-27 WHS-Chemistry-1stSixWeeksThe History and Arrangement of the Periodic Table

Electrons and the Periodic Table Answers

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1
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How did Moseley establish a more accurate periodic table?

A
by arranging the elements according to atomic mass instead of atomic number
B
by arranging the elements according to atomic number instead of atomic mass
C
by arranging the elements into horizontal periods
D
by arranging the elements into vertical groups
2
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Which scientist established the law of octaves?

A
Antoine Lavoisier
B
Dmitri Mendeleev
C
Henry Moseley
D
John Newlands
3

Who wrote the first modern chemical textbook?

A
Antoine Lavoisier
B
Dmitri Mendeleev
C
Henry Moseley
D
Johann Dobereiner
4

Who is credited with creating the first periodic table?

A
Johann Dobereiner
B
Henry Moseley
C
Dmitri Mendeleev
D
John Newlands
5

What is the chemical symbol for magnesium?

A
Mo
B
Mn
C
Mg
D
Md
6

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

A
halogens
B
alkaline earth metals
C
noble gases
D
alkali metals
7

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

A
Mendeleev arranged the elements according to increasing atomic mass.
B
Mendeleev predicted elements that would later be discovered.
C
Mendeleev identified elements that had similar properties.
D
Mendeleev organized elements into triads based on their properties.
8

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

A
bismuth
B
osmium
C
silver
D
zirconium
10

Which is another name for groups of elements?

A
actinides
B
families
C
halogens
D
periods

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