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Periodic Table by ChemCools Flashcards | StudBud
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Periodic Table by ChemCools
Periodic Table by ChemCools
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Answers
1
As you move down a group in the P.T., atomic size generally
varies randomly
decreases
remains the same
increases
2
Among the followings which one would have
the greatest atomic size
?
Li, C, K, F, Cs
Cs
C
Li
F
3
From left to right across the period of the P.T.
atomic radii increase
atomic mass decreases
electronegativity decreases
ionization energy increases
4
Of the following atoms, which one has the smallest ionization energy
nitrogen
silicon
boron
aluminum
5
Which elements form coloured compounds in the periodic table?
transition metals
halogens
alkaline earth metals
alkali metals
6
Among the followings which one would have
the highest ionization energy
?
Li, C, K, F, Cs
K
Cs
F
Li
7
Argon doesn't react. Because it is
a noble gas
a halogen
a transition metal
an alkali metal
8
Which of the following atoms would have the largest atomic radius?
K
Rb
Ca
I
9
the element with 8 electrons in its 3d sublevel is
Ar
Ne
Ni
O
10
Among the following elements which one is the most reactive metal?
Cu
Fe
Ca
K
11
What is the chemical formula for BaNaNa
?
BaNaNa
BaNa2
12
Arrange the following elements in order of
decreasing
ionization energy;
Cs, Li, K
K, Cs, Li
K, Li, Cs
Li, K, Cs
Cs, K, Li
13
Which group does element Z belong to
Z: 1s
2
2s
2
Inner transition metals
Alkaline earth metals
Halogens
Alkali metals
14
What is the
# of electrons
in the highest occupied energy level of an element in
Group 5A
?
8
3
13
5
15
The largest atom from among the following is
Na
Li
Rb
Fr
16
What is formed when an electron lost?
Dogion
Anion
Cation
17
Among the following elements which one has
3s
2
3p
5
configuration in its outermost energy level?
Fr
O
Ar
Cl
18
The representative elements are
Group A elements
Group B elements
inner transition metals
transition metals
19
The alkali metals do
not
include
Ca
Na
Li
Rb
20
Which
sublevel
corresponds to the
transition metals
in the P.T.?
f
s
p
d
21
The
smallest
particle (
atom
or
ion
)
from among the following is
F
F -
Li +
Li
22
Among the followings which one would be
the most electronegative
?
Li, C, K, F, Cs
F
Li
C
Cs
23
"I only make bad chemistry jokes because all the good ones ........................"
Arsenic
Boron
Neon
Argon
24
The element iodine, I, is a
period 4 halogen
period 5 halogen
period 5 alkali metal
period 5 transition metal
25
The electron configuration of the element
boron
ends in
2s2
2s22p2
2s22p1
2s1
26
An element that contains electrons in a
d
sublevel is
Fe
Ne
Mg
O
27
Which elements would you combine to make a sharp KNiFe?
Potassium, Nickel, Iron
Potassium, Nitrogen, Iron
Carbon, Nickel, Fluorine
Potassium, Nickel, Fluorine
28
What is the
group numbe
r of element
X: 1s
2
2s
2
2p
3
3A
5A
7A
2A
29
Ions
form from elements when they
gain
or
lose
............
neutrons
photons
electrons
protons
30
What is the
period number
of element
Y: 1s
2
2s
2
2p
6
3s
2
3p
2
period 2
period 3
period 10
period 2
31
Which of the following elements is a metalloid?
Kr
Si
Br
Se
