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Periodic Table Trends Flashcards | StudBud
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Periodic Table Trends
Periodic Table Trends
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1
Rows in the periodic table are called
columns
families
groups
periods
2
How does atomic radius change from left to right across a period in the periodic table?
It first increases, then decreases.
It tends to increase.
It first decreases, then increases.
It tends to decrease.
3
What is the number of electrons in an Al
3+
ion?
3
10
16
13
4
Which element has chemical properties that are most similar to the chemical properties of F?
oxygen
chlorine
neon
boron
5
In the electron cloud model of the atom, an orbital is defined as the most probable?
charge of an electron
location of an electron
mass of an electron
conductivity of an electron
6
Which quantity is equal to 50 kilojoules?
500 J
5 × 104 J
0.05 J
5 × 103 J
7
Which element has the lowest electronegativity value?
A) F
B) Fr
C) Cr
D) Cl
8
What do elements in the same column in the periodic table have in common?
similar mass
similar properties
similar melting points
9
Which elements are located on the left side of the periodic table?
noble gasses
metals
non-metals
metalloids
10
As you move from the left side of the periodic table to the right, elements become __________.
more reactive
less reacive
11
The elements in a column of the periodic table
are in the same group
have the same chemical symbols.
have the same atomic mass.
are in the same period.
12
2. Potassium forms an ion with a charge of
A
C
D
B
13
An ion that consists of 7 protons, 6 neutrons and 10 electrons has a net charge of
4+
3+
-4
-3
14
What is number 21 in the periodic table?
Scandium
sodium
chlorine
21 savage
15
The modern periodic table is arranged in order of increasing
neutrons
isotopes
atomic mass
atomic number
16
The numbered row of the Periodic Table of Elements tells you how many _________ an element has.
energy levels
neutrons
atoms
protons
17
Why is the periodic table so useful to scientists?
It lists chemical formulas for all the different compounds.
It reminds them what the elements look like.
It's used to predict how elements will react to each other.
It contains the recipes for a different kinds of mixtures.
18
Rank the following atoms in order of increasing size
Li, Mg, Be
Li, Be, Mg
Mg, Li, Be
Be, Li, Mg
19
Arrange the following in order of increasing ionization energy.
Ga, Al, In
Ga, In,Al
In, Ga, Al
Al, Ga, In
20
Elements along the staircase of the Periodic Table are known as
Semi-metals
Metalloids
Other nonmetals
Poor metals
21
Helium and most nonmetals are found in which area of the periodic table?
On the left-most side.
In the middle column of the periodic table.
In the bottom rows.
On the right side.
22
Each period in the periodic table corresponds to?
a family
an energy level
an orbital
a suborbital
23
What helps to identify the element in periodic table?
Neutron number
Valence number
Atomic number
Atomic mass
24
The large group of elements in the main part of the periodic table are the _____.
transition elements
alkali metals
lanthanide and actinide series
alkaline earth metals
25
A periodic table shows elements X and Y. If atomic number of X is 3, what is the atomic # of Y?
19
5
7
25
26
How does the atomic radius change from top to bottom in a group on the periodic table?
it first decreases than increases
it increases
it increases than decreases
it decreases
27
What are elements in group 18 known as?
Alkaline Earth Metals
Noble Gases
Halogens
Alkali Metals
28
A variant form of an atom, possessing the same number of protons and electrons, but different numbers of neutrons
ion
acid
isomers
Isotope
29
Which list includes elements with the most similar chemical properties?
N,O, F
Cr,Pb, Xe
Br, Cl, I
O,S, Ne
30
The elements in Group 2 are classified as
NOBEL GASES
METALS
NON METALS
METTALLOIDS
31
The element in period 4 and group 1 of the periodic table would be classified as
metalloid
noble gas
metal
nonmetal
32
The metals of group 1 of the periodic table are called the
Alkaline Mars Metals
Alkaline Earth Metals
Alkali Metals
Alkali Nonmetals
33
In which list are the elements arranged in order of increasing atomic mass?
Ne, F, O
Fe, Co, Ni
Rn, At, Po
N, F, O
34
The elements in the second column from the left edge of the periodic table are the _____.
alkaline earth metals
lanthanide and actinide series
transition elements
alkali metals
35
In the periodic table, the most reactive metals are found
in Groups 13 through 16 in the center
in Period 1, the first row across the top.
in Group 1, the first column on the left.
in Periods 6 and 7 at the bottom.
