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