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periodic table Flashcards | StudBud
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periodic table
periodic table
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#periodictable #8science #science #atom #grade8
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Magnesium and sulfur belong in period
4
3
2
1
2
Elements in the periodic table are arranged by...
Number of neutrons
Mass number
Atomic number
3
This element has 17 electrons
Sulfur
Chlorine
Sodium
Fluorine
4
Chlorine is a __________ at room temperature.
Solid
Liquid
Gas
5
The rows of the periodic table are called periods.
False
True
6
Metals are more reactive as you go ________ on the table
Up
Right
Left
7
Which element does NOT have a full outer shell
Helium
Beryllium
Krypton
Neon
8
Which of the following is NOT a property of a metal
Insulator
Malleable
Good conductor of heat
Solid at room temperature
9
This element is found in period 6
Iron
Boron
Barium
Helium
10
Ductile
means...
can be flattened into sheets
stetched into wire
the metal is brittle
11
How many valence electrons do elements from group one have?
They don't have any
Se pa
11
1
12
Non-metals are more reactive as you go ___________ the periodic table
Up
Across
Down
13
Metals
are found on the __________ side of the periodic table.
Left
Middle
Right
14
How many known elements are found on the periodic table.
118
200
92
10
15
The atomic number of an element tells you the number of _____ in a neutral atom.
Neutrons
Protons
electron shells
16
Which of the following are dull and brittle...
Metalloids
Metals
Non-metals
17
What is the name of this group?
Halogens
Alkali metals
Noble Gases
Alkaline earth metals
18
Noble gases are...
Group 19
Not reactive
Only found in period 3
19
This element has 4 electrons in their outer shell
Beryllium
Phosphorous
Carbon
Potassium
20
The columns of the periodic table are called groups
False
True
