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Periodic Table Review
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How many valence electrons to alkali metals have?
1
How many valence electrons do Alkaline Earth Metals have?
2
Which color represents non-metals?
Pink
Which color represents metalloids?
Yellow
Which color represents metals?
Blue
What name is given to the family of elements furthest to the right on the table: elements with a full valence shell that do not react with other elements to form molecules?
Noble gases
How is the periodic table read?
from left to right and top to bottom in increasing atomic number
What does the atomic number of an element refer to?
The number of protons in a single atom of that element
What are valence electrons?
The electrons in an atom's outermost shell
Would you consider an element with 1 valence electron highly reactive or not reactive? Why?
Highly reactive because it can easily lose the one electron to become stable
How many electrons does there need to be in a valence shell for an atom to be stable?
0 or 8
What are the three components of an atom?
Nucleus (protons and neutrons) and electrons
Who is generally responsible for how the periodic table is formatted?
Dmitri Mendeleev
Which grouping of elements share similar characteristics? Periods or Groups?
Groups aka vertical columns
What are the horizontal rows called on the periodic table?
Periods
What are the vertical columns in the periodic table called?
Groups
How is the periodic table ordered?
By increasing atomic number
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