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Periodic Table & Periodic Trends Flashcards | StudBud
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Periodic Table & Periodic Trends
Periodic Table & Periodic Trends
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A #chemistry #review of #periodic #trends
Flashcards
32 cards
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Questions
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Answers
1
Half the distance between the nuclei of two like atoms is called what?
atomic mass
atomic distance
atomic diameter
atomic radius
2
The VERTICAL sections of the periodic table are called:
groups
columns
rows
periods
3
Cations from when atoms
lose protons
lose electrons
gain electrons
gain protons
4
Which element is a member of the halogen family?
B
K
I
S
5
An element with a partially filled d sublevel is classified as:
an alkali metal
a halogen
a transition metal
an alkaline earth metals
6
The elements calcium and strontium have similar chemical properties because they have the same:
number of valence electrons
mass number
atomic number
number of completely filled sublevels
7
Which of the following elements is in the same period as phosphorus?
nitrogen
oxygen
carbon
magnesium
8
The amount of energy required to remove the outermost electron is known as:
activation energy
first ionization energy
electronegativity
conductivity
9
If you consider element in group 15 (5A) in order of increasing atomic number, the radius...
decreases
remains the same
increases
10
When a lithium atom loses one electron to form an Li
+1
ion, the electrons are lost from the
2p orbital
2s orbital
1s orbital
3d orbital
11
Which list of elements from group 2A is arranged in order of increasing atomic radii?
Ba, Ra, Sr
Ca, Mg, Be
Be, Mg, Ca
Sr, Ra, Ba
12
Which properties are most common in nonmetals?
high ionization energy & low electronegativity
high ionization energy & high electronegativity
low ionization energy & high electronegativity
low ionization energy & low electronegativity
13
How many electrons does an atom generally need in its outer level to be the most stable?
4
6
8
2
14
Which statement describes group 2 elements from top to bottom?
# of n increases, and # of valence electrons increases
# of n remains the same and # of valence electrons decreases
# of n increases, and # of valence electrons remains same
# of n remains same, and # of valence electrons increases
15
The strength of an atom's attraction for the electrons in a chemical bond is the atom's:
ionization energy
heat of formation
electronegativity
heat of reaction
16
What is the total number of valence electrons in an atom of xenon?
2
0
8
18
17
Metals...
Tend to gain electrons
Are poor conductors
Form positive ions
Are brittle
18
The category of elements that is characterized by the filling of
f
orbitals is the
transition metals
inner transition metals
noble gases
alkali metals
19
The group 17 (7A) with the highest electronegativity is:
Iodine
Fluorine
Chlorine
Bromine
20
Noble gases...
have a complete valence shell
All of the above
are inert
are group 8A
21
Which group 17 (7A) element has the least attraction for electrons?
F
I
Cl
Br
22
Which one of the following is a metalloid?
Br
Pb
S
Ge
23
When comparing Na to Mg, the smaller radius of Mg is primarily a result of the Mg atom having:
a larger nuclear charge
a smaller nuclear charge
fewer principal energy levels
more principal energy levels
24
Who is responsible for the modern periodic table arranged in order of increasing atomic number?
Meyer
Mendeleev
Moseley
Newlands
25
An atom of an element contains 20 protons, 20 neutrons, and 20 electrons. The element is...
a transition metal
a halogen
an alkali metal
an alkaline earth metal
26
On the periodic table, all the elements within group 16 (6A) have the same number of:
neutrons
protons
energy levels
valence electrons
27
Which of the following atoms has the largest atomic radius?
Na
Ca
K
Mg
28
Which noble gas has the highest first ionization energy?
Helium
Neon
Radon
Krypton
29
Which sequence of elements is arranged in order of decreasing atomic radii?
Al, Si, P
Cl, Br, I
Li, Na, K
N, C, B
30
Which element in period 5 is a transition element?
Xe
Sr
Ag
Sb
31
Mendeleev arranged the periodic table in order of increasing...
atomic radius
atomic mass
atomic number
32
How does atomic size change as you move down a group on the periodic table?
increases
stays the same
decreases
