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Periodicity Flashcards | StudBud
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Periodicity
Periodicity
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Review for #periodic table #trends.
Flashcards
19 cards
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Questions
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Answers
1
Which element has the greatest electronegativity?
chlorine
bromine
iodine
fluorine
2
How does fluorine follow the octet rule?
It gains an electron.
Fluorine can not follow the octet rule.
It gives up electrons
It loses one proton.
3
Horizontal rows on the periodic table are called _______.
periods
groups
families
energy levels
4
Which element is a halogen?
Nitrogen
Zinc
Iodine
Argon
5
Which element in the fourth period has the smallest atomic radius?
Iron
Cobalt
Zinc
Potassium
6
The representative elements are also known as what?
Inner transition elements
Group B elements
Transition elements
Group A elements
7
As you move from left to right on the periodic table, atomic radius ...
some increase and some decrease
increases
stays the same
decreases
8
What is true about the shielding effect?
It increases from left to right across a period.
It increases as energy levels around the nucleus increase.
Atoms with smaller atomic numbers have more shielding.
It decreases from left to right across a period.
9
Which element is a transition metal?
Magnesium
Uranium
Cobalt
Boron
10
Vertical columns on the periodic table are called _______.
Energy Levels
Valencies
Groups
Periods
11
Mendeleev originally organized the periodic table in order of increasing _________.
atomic mass
reactivity
atomic number
atomic radius
12
An atom's tendency to attract electrons.
electronegativity
reactivity
ionization energy
periodic law
13
What is NOT true about anions?
Anions gain electrons
Nonmetals commonly become anions
Anions have a negative charge
Anions are found in group 2A.
14
How many valence electrons are in an atom of aluminum?
3
2
4
1
15
The amount of energy required to remove an electron from an atom is called _________.
periodicity
electron ¨take it away¨
electronegativity
ionization energy
16
Which element is an alkaline earth metal?
Lithium
Chlorine
Calcium
Nickel
17
What type of element has electrons in the
d
orbital?
alkali metals
transition metals
halogens
alkaline earth metals
18
An atom that has lost electrons becomes...
a neutral element
an anion
a cation
an octet
19
Which element has the smallest first ionization energy?
magnesium
sodium
calcium
potassium
