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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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1
Metals are _______, which means they can be hammered into sheets.
ductile
shiny
conductors
malleable
2
The horizontal rows are called __________. Properties "start over" with each one.
commas
groups
families
periods
3
Which of these elements will react most like carbon?
silicon
boron
aluminum
nitrogen
4
Which element has 2 electrons in the 3rd shell?
berylium
boron
magnesium
aluminum
5
Which of these elements is a metal?
mercury
silicon
carbon
hydrogen
6
Most of the elements on the periodic table are __________.
nonmetals
gases
metals
metalloids
7
Which of these elements is the most reactive?
Cl
F
I
Br
8
What is the chemical formula for calcium chloride?
CaCl
Ca2Cl
Ca2Cl3
CaCl2
9
Which of these elements is a metalloid?
zinc
krypton
bromine
silicon
10
Lithium will react similarly to _________.
magnesium
berylium
calcium
potassium
11
Elements in the same ________ have the same number of valence electrons.
group
valence
period
row
12
Most atomic masses are a decimal because they represent
an average of all the known isotopes of that element
the mass of two of the atoms of that element
fractions of atoms
all the atoms of that element
13
Inside the "box", the nice, round whole number is
the atomic number
the atomic mass
Avagadro's number
the isotope number
14
What is the chemical formula for sodium chloride?
Na2Cl3
NaCl
Na2Cl
NaCl2
15
Metalloids have properties of ________.
liquid metals
metals
nonmetals
both metals and nonmetals
16
________ tend to gain electrons, making them negative ions.
Nonmetals
Alkaline earth metals
Metalloids
Metals
17
Who made the first Periodic Table?
Mendel
Bohr
Mendeleev
Rutherford
18
In the "box", the decimal number is
Avagadro's number
the atomic number
the prime number
the atomic mass
19
The period number tells . . . .
the number of neutrons the elements in that period have
how many electrons the elements in that period have.
how many valence electrons the elements in that period have.
how many electron shells the elements in that period have.
20
Which of these elements is a nonmetal?
lithium
sulfur
gallium
boron
21
Which of these elements is the most reactive?
Na
Li
Rb
Fr
22
Which of these elements is the least reactive?
K
Ni
Br
Ca
23
If you get this, you're a junior chemist! What is the chemical formula for aluminum oxide?
Al3O2
AlO4
Al2O3
AlO2
24
The chemical symbol of an element is written
as a capital (1 letter) or capital/lower case (2 letters)
as lower case letters if there are two letters
in all capital letters
as a lower case letter if there is only one letter
25
Elements in the same ____________ react similarly.
school
pod
period
group
26
Which of these elements will react similarly to oxygen?
fluorine
sulfur
chlorine
nitrogen
