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Periodic Table
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100
The horizontal rows on the Periodic Table are called
What are Periods.
100
Which element is Group 1, Period 3?
What is Sodium.
100
Most elements on the Periodic Table are
What are metals.
100
If an atom has 8 protons, how many electrons does it have?
What is 8
100
Who originally arranged the elements according to Atomic Mass?
What is Mendeleev
200
The vertical columns on the Periodic Table are called
What are groups.
200
The most abundant element in the Earth' surface is
What is Aluminum.
200
To the right of the zigzag line we find
What are nonmetals.
200
What are the electrons on the outermost level of an atom?
What is a valence electron.
200
What is the most abundant element in the earth's crust?
What is Aluminum.
300
What elements directly border the "zig/zag" line?
What are metalloids.
300
What element is located in Period 4, Group 8?
What is Iron.
300
Which element makes up 20% of the air we breath?
What is Oxygen.
300
Since an Aluminum Ion has 13 protons and 10 electrons it has a _____ charge.
What is 3+
300
On the Period Table K stands for
Potassium.
400
Mendeleev arranged elements in order of increasing
What is atomic mass.
400
The most reactive metals are
What Alkali Metals.
400
What Element makes up 80 % of the air we breath?
What is Nitrogen.
400
_____ are charge particles that form when atoms gain or lose electrons.
What are Ions.
400
The electrons at the outermost energy level are called
What is Valence.
500
The "19" above Potassium (K) represents the
What is atomic number.
500
Metals of Group 3-12 are called
What are Transition Metals.
500
_________ gases are unreactive metals in Group 18 pf the Periodic Table.
What is Noble.
500
When ions bond, they form a repeating three-dimensional pattern called
What is a Crystal Lattice.
500
The letter He stands for the element we use to make balloons fly high.
What is Helium.