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