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2 cards from this section. Quick, good the night before a test.
How many elements are in the first period of the periodic table?
Remember the filling of the 1s orbital.
What configuration does Helium have?
Consider the complete filling of the first shell.
What is the maximum number of electrons that can occupy the second energy level?
Remember the general formula for maximum electrons.
True or False: The first period of the periodic table contains four elements.
Consider the structure of the periodic table.
Given an element in the fourth period, predict its position and electronic configuration.
Start from the noble gas preceding the element.
Discuss how the periodic trends observed can impact chemical reactivity of the sixth period elements.
Link reactivity to electron gain and loss in context of trends.
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