History/Development
Types of Elements
Trends - Definitions
Trends - Explanations
Potpourri
100
Who developed the first practical periodic table?
Mendeleev
100
What can metals do with heat and electricity?
conduct
100
What describes the size of an element?
atomic radius
100
Why will AR increase down a group?
filling higher levels
100
What configuration is least stable?
partial
200
What determines the order of the modern table?
Atomic number
200
What property describes how easy it is to hammer a substance into a shape?
malleability
200
Trends are measured in what two directions?
across and down
200
Why does IE increase across a period?
harder to take electrons from elements with more electrons
200
How many outer electrons are needed to be stable?
eight
300
What do you call a vertical column with elements having similar properties?
group
300
Metals tend to be what color?
silvery/gray
300
Trend that gives energy and takes electrons
ionization energy
300
Why will EA decrease down a group?
outer level is farther from the nucleus so there is less attraction between them
300
What is the charge on chromium (VI)?
6+
400
What is a horizontal row that fills in an energy level?
period
400
Nonmetals do not conduct well. They are good
insulators.
400
Trend that gives electrons and takes energy
electron affinity
400
What type of elements tends to make cations?
Metals
400
Where do elements come from?
supernova explosions
500
What is another name for group 18?
Noble Gases
500
Elements that can conduct and insulate are called
semiconductors
500
The ability of an atom to attract another's outer electrons is called
electronegativity
500
Why will nonmetals have more EN?
because they only need a few electrons to be stable.
500
What bounty hunter captured Han Solo?
Boba Fett
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