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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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#elements
Flashcards
31 cards
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Answers
1
Mendeleev arranged the element by
atomic mass
appearance
atomic number
density
2
when an atom looses an electron it has a ______ charge
neutral
positive
negative
3
Which of the following is NOT a property of most nonmetals
many are gases at room temperature
excellent electric conductivity
solids tend to be dull and brittle
found on the right side of the periodic table
4
Each vertical column on the periodic table is called a (n)
element
property
group
period
5
Atoms of _____ have two outer level (valence) electrons
transition metals
halogens
alkaline earth metals
alkali metals
6
A horizontal row on the period table is called a(n)
atomic number
family
period
group
7
all matter is made up of
cells
atoms
oxygen
compounds
8
Gases O, Ar,Cl, and Ne, most chemically reactive?
oxygen and argon
argon and neon
oxygen and chlorine
chlorine and neon
9
the first energy shell can have ____ electrons
18
8
2
6
10
measure volume using a graduated cylinder, you must measure from the ____ of the meniscus
top
side
middle
bottom
11
Which of the following is NOT a characteristic of a gas
it does not have a definite volume
the atoms are moving quickly
it takes the shape of its container
it has a definite shape
12
Which of the following best describes particles in a liquid?
Molecules are spread and moving
takes the shape of its container
molecules slide past each other
particles are tightly packed
13
Most metals are
dull
bad conductors of electric current
not malleable
solid at room temperature
14
If you heat a liquid and measure the temperature at which it boils, you are measuring a(n)
atomic property
physical property
molecular property
chemical property
15
Which state of matter has atoms with the most motion.
jello
solid
liquid
gas
16
The second energy level around the nucleus of an atom can contain up to___ elections
6
8
2
12
17
What holds atoms together in a molecule
chemical bonds
magnetism
physical bonds
gravity
18
What causes matter to go through phase changes?
only an increase in thermal energy
only a decrease in thermal energy
either an increase or decrease in thermal energy
a stable amount of thermal energy
19
When is an atom considered to be stable?
when the nucleus is full
energy levels surrounding the nucleus are completely filled
when it has the same amount of protons and electrons
when it has more than 32 electrons
20
Which unit is used to measure mass in science class
grams
liters
mililitters
centimeters
21
An atom that gains an elctons has a ___ charge
positive
negative
22
Semiconductors also known as ___ have some properties of metals and some properties of noemtals
actinides
tranisition metals
lanthanides
metalloids
23
An atom of carbon with 6 protons, 6 electrons, and 6 neutrons would have an atomic mass of
15
12
6
18
24
The element of Copper has how many neutrons
35
30
64
29
25
How would you describe the nucleus of an atom
dense, + charged
large, + charge
dense, - charged
tiny, - charged
26
nitrogen AND OXYGEN are examples of
halogens
metals
metalliods
nonmetals
27
Sodium and potassium are _____ metals.
alkali
lanthanide
actinide
alkaline earth
28
Which of the following has the least mass?
neutron
electron
nucleus
proton
29
the subatomic particles of an atom are
proton, neutron, element
nucleus, protons, neutron
proton, electron, nucleus
proton, neutron, electron
30
____ 50 ml is equal to
5000
0.05
0.5
500
31
The element Tungsten (W) has how many protons
74
89
6
183
