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9: Elements 1 to 20 Flashcards | StudBud
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9: Elements 1 to 20
9: Elements 1 to 20
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Review of some properties of the first 20 elements
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Which of the following elements are
NOT
an Alkali Metal?
Lithium
Sodium
Hydrogen
Potassium
2
What is a well known use for the combustion reaction (burning) of Alkaline Earth Metals?
Flints and lighters
Fireworks
Explosives
Metal forging
3
Why are Noble Gases stable?
They have a full outer electron shell/cloud
They are in gas state
Their atomic numbers are divisible by 2
They are on the right side of the periodic table
4
"C" is the symbol for what element?
Chlorine
Cobalt
Copper
Carbon
5
If a gas is less dense than air, it is:
Lighter, so will sink
Heavier, so will sink
Heavier, so will float
Lighter, so will float
6
How many electron shells does Calcium use?
20
40
4
2
7
Halogens exist in what state at room temperature?
Gass
All three
Liquid
Solid
8
Beryllium, Magnesium and Calcium are members of which group?
Alkaline Earth Metals
Non-metals
Transition Metals
Metalloids
9
Group 1 elements (Alkali metals) bond well with which group of elements?
Group 17 (Halogens)
Group 18 (Noble Gases)
Group 2 (Alkaline Earth Metals)
Metalloids
10
Which group contains the most reactive metals?
Group 2
Group 18
Group 17
Group 1
11
To which group do Helium, Neon and Argon all belong?
Alkaline Earth Metals
Halogens
Noble Gases
Alkali Metals
12
What element has an atomic mass of 16?
Lithium
Sulfur
Oxygen
Carbon
13
Which group has 4 valence electrons (in the outer-most cloud/shell)?
Transition Metals
Non-metals
Group 14
Group 4
14
EXAMPLE: What is the symbol for the element Hydrogen?
1
Hydrogen
H
H2
15
How many valence electrons (in the outer shell/cloud) do Noble Gases have?
12
8
10
1
