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Chemistry Chapter 3 Review, Periodic Table Trends Flashcards | StudBud
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Chemistry Chapter 3 Review, Periodic Table Trends
Chemistry Chapter 3 Review, Periodic Table Trends
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Chapter 3 Review, trends
Flashcards
12 cards
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Questions
12
Answers
1
Periodicity is
tendency to recur at regular intervals
Mendeleev's enemy
a repeating pattern
evident in the periodic table
2
Vertical columns on the periodic table...
can be longer
are called rows
are called groups
are called families
3
As you move down a group, reactivity
stays the same as valence electrons
increases
decreases
stays the same
4
Moving from left to right and top to bottom,
atomic number increases
atomic radius increases
atomic bombs increase
atomic mass increases
5
Density increases on the table from
top to bottom
always
sometimes
bottom to top
6
Elements grouped together in groups of three are known as...
triads
triangles
tripods
7
To find the density of an unknown element, one could...
use the atomic radius divided by the area
average the densities of surrounding elements
predict by counting electrons
use the chart of valence electrons
8
Moving left to right across the table...
atomic radius decreases
valence electrons decrease
metallic character increases
atomic number decreases
9
Noble gases are stable because
a valence electron will not connect
their physical state is steady
they have a full octet
their inner shells are full
10
Horizontal rows on the periodic table
are called periods
correspond to electron shells
are called groups
are called families
11
Historically, the table was arranged by...
chance
atomic mass, then atomic numbers
periods of time
chemists
12
Systematic arrangments of elements allows for...
happy chemistry
elements to fall into repeating patterns
properties to be predicted
orderly conduct
