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Periodic Table
Periodic Table
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periodic table of the elements test review Pearson Wilbraham chemistry
Flashcards
21 cards
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Questions
21
Answers
1
Which elements are shown as gray in image?
alkali metals
inner transition metals
transition metals
metalloids
2
How was Mendeleev's periodic table arranged?
Increasing atomic number
Increasing atomic mass
increasing number of valence electrons
increasing energy levels
3
What is the name of group 2?
Alkaline Earth Metals
Halogens
Noble Gases
Alkali Metals
4
Which of the following elements is a transition metal?
aluminum
copper
sulfur
potassium
5
Vertical columns on periodic table are called …
groups
periods
classes
rows
6
Elements in the same period have what in common?
Similar Density
Number of valence electrons
Similar properties
Highest occupied electron shell
7
How many valence electrons does an atom of nitrogen have?
7
2
15
5
8
What elements are to the right of the stair step line?
nonmetals
transistion metals
metals
metalloids
9
What elements are located along the stair-step line?
metalloids
inner transition metals
transition metals
metals
10
The most reactive nonmetal on the periodic table is
astatine
helium
fluorine
carbon
11
How does atomic size vary down a group?
increases
stays the same
decreases
varies
12
Which subatomic particle plays the greatest part in determining the properties of an element?
neutron
electron
none of these
proton
13
The number of valence electrons increases as you move …
across a period
There is no pattern in valence electrons
Down a group
14
Horizontal rows on the periodic table are called …
Groups
Classes
Periods
Families
15
How is the modern periodic table arranged?
increasing energy levels
Increasing atomic number
Increasing atomic mass
increasing valence electrons
16
What is NOT true of the group of elements highlighted?
They all have a full outer shell of electrons
They are called noble gases
Most have 8 valence electrons
They are very reactive
17
What are valence electrons?
Electrons in the outermost energy level
Electrons in the innermost energy level.
18
Who created the first periodic table?
Mendeleev
Bohr
Rutherford
Dalton
19
What measures the tendency of an atom to keep shared electrons near itself?
ionic radius
electronegativity
ionization energy
electron affinity
20
Why is shielding constant across a period?
The number of inner shell electrons doesn't change.
The charge on the nucleus is constant.
The atomic radius decreases.
Electrons are added to different principal energy levels.
21
How does shielding vary across a period?
varies
decreases
increases
stays the same
