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Part TWO PS Quiz 4A
Test Description: Part Two
Instructions: Answer all questions to get your test result.
1) Scientists started to notice repeating patterns when they arranged the elements in order by increasing atomic mass. This repeated pattern is called _______.
A
law
B
patterns
C
periodicity
D
sequence
2) In 1869, Russian chemist Dmitri Mendeleev organized the elements in a table much like our ______ periodic table.
A
dense
B
compressed
C
ancient
D
modern
3) The most striking features of Mendeleev’s periodic table were the _______ spaces that he left between some elements.
A
closed
B
new
C
blank
D
huge
4) The spaces left blank in Mendeleev’s periodic table were for _______ elements that he predicted would be found in the future.
A
metal
B
nonmetal
C
ancient
D
unknown
5) The discoveries of gallium (31) and germanium (32) proved that Mendeleev was _________.
A
wrong
B
off
C
misguided
D
correct
6) The arrangement of the _________ table relates to the structure of the atoms themselves.
A
first
B
periodic
C
proper
D
latest
7) English ________ Henry Moseley made an important discovery in 1914.
A
botanist
B
chemist
C
physicist
D
zoologist
8) Moseley recognized that he was able to use a new technique called X-ray ________ to determine the atomic number for each element.
A
radiation
B
spectroscopy
C
micrography
D
cartography
9) A family, or group, is a set of elements in the same _______ on the periodic table.
A
row
B
area
C
column
D
zone
10) The most updated versions of the periodic table include all the elements through ______ number 118.
A
atomic
B
subscript
C
chemical
D
isotope
11) Most importantly, each element in the group has the same number of ______ electrons, which are the electrons in the outermost energy level of a neutral atom.
A
positive
B
total
C
valence
D
visible
12) Scientists call a row on the periodic table a ______.
A
column
B
period
C
group
D
family
13) Each period represents an _______ level.
A
old
B
ancient
C
subtracted
D
energy
14) The row that a certain element is ______ in also designates the energy level of its valence electrons.
A
added
B
subtracted
C
located
D
eliminated
15) In ________, an atom could have an infinite number of energy levels, but so far we know only of elements with up to seven energy levels.
A
discovery
B
space
C
practice
D
theory
*select an answer for all questions
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