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Periodic Table - Physical Science 8 - Virginia SOL PS.4 Flashcards | StudBud
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Periodic Table - Physical Science 8 - Virginia SOL PS.4
Periodic Table - Physical Science 8 - Virginia SOL PS.4
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1
This is called the
Periodic
Table of Elements because the word
"periodic"
means:
only once
in a short amount of time
in a repeated pattern
chemistry
2
Each __________ is made up of only one type of atom.
compound
hetergeneous mixture
homogeneous mixture
element
3
Predictable properties emerge when elements are arranged according to the __________.
average atomic mass
number of protons
number of neutrons
mass number
4
Calcium (Ca) is a __________.
non-metal
metal
semi-metal
metalloid
5
Which element is a
non-metal?
Cu (copper)
P (phosphorus)
Ga (gallium)
Si (silicon)
6
The smallest unit of matter, that cannot be broken down with chemical reactions, is called __________.
a nucleus
an atom
a compound
a molecule
7
Referring to the periodic table, which word does
not
belong?
column
family
group
period
8
Isotopes are atoms of the same element, but with a different __________.
number of protons
number of electons
number of neutrons
atomic number
9
Which elements are in the same
period
?
Si and As
Ga and In
Br and I
Al and Cl
10
Elements with an atomic number greater than 92 are __________.
are all gasses at room temperature
called transition metals
not found naturally in measurable amounts on Earth
inert, meaning they are chemically stable
11
What is
131.293
?
it's the average mass of all the isotopes of Xenon
it's the sum of the scores on your neighbor's last two quizzes
it's the mass of each individual Xenon atom
it's the mass of the electrons
12
The
mass number
of an atom is found by __________.
subtracting the number of protons from the average atomic mass
adding the number protons and neutrons
subtracting the number of electrons from the average atomic mass
adding the number of neutrons and electrons
13
When an atom becomes charged (by losing or gaining an electron), it is called __________.
an isotope
a compound
an ion
a neutral atom
14
I don't know what Se (selenium) is, but I know it will chemically react very similarly to oxygen because __________.
they have the same number of valence (outer shell) electrons
they are in the same period
they have the same number of protons
they are both gases at room temperature
15
Every atom of carbon has the same number of __________.
electrons
protons
neutrons
mass numbers
16
Which two elements would you expect to have the
most similar properties
?
O and N
O and B
O and Ne
O and S
17
Silicon is called a
metalloid
for all of these reasons,
except
...
it can be used as a semi-conductor
it has some properties of metals, and some properties of non-metals
it's always wearing black t-shirts and listening to loud rock music
it is located along the "stair-step"
18
The
charged ions
are
more
chemically stable than the
neutral elements
because __________.
ions have a full outer shell of electrons
ions have the same charge as elements
ions have fewer neutrons than elements
ions have more protons than elements
