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18 questions
Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.
Most noble gases have _______ valence electrons.
1
2
7
8
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
Which of the following elements is most likely to have similar properties to those of sodium (Na)?
Magnesium (Mg)
Sulfur (S)
Francium (Fr)
Titanium (Ti)
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