Answers26-27 WHS-Chemistry-1stSixWeeksAtomic Numbers and Electron Configurations

The History and Arrangement of the Periodic Table Answers

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Which property would cesium most likely have?

A
It is hard.
B
It is ductile.
C
It is a gas.
D
It has low reactivity.
2
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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.
3

Who is credited with creating the first periodic table?

A
Johann Dobereiner
B
Henry Moseley
C
Dmitri Mendeleev
D
John Newlands
4

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
5

Which element has the greatest average atomic mass?

A
iodine
B
bromine
C
tellurium
D
krypton
6

Which is another name for groups of elements?

A
actinides
B
families
C
halogens
D
periods
7

Which element is classified as a noble gas?

A
O
B
N
C
Cl
D
Xe
8

Who wrote the first modern chemical textbook?

A
Antoine Lavoisier
B
Dmitri Mendeleev
C
Henry Moseley
D
Johann Dobereiner
9

Which is classified as an inner transition element?

A
calcium
B
copper
C
fermium
D
helium
10

Which scientist established the law of octaves?

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

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