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3 cards from this section. Quick, good the night before a test.
What is a periodic table?
Think about what organizes elements.
How many groups are there in the Modern Periodic Table?
Count how many vertical columns there are.
How many periods are in the Modern Periodic Table?
Recall the horizontal rows.
True or False: Noble gases are highly reactive.
Think about what makes them stable.
Considering the trends in the periodic table, explain how atomic radius changes from sodium to chlorine across a period, and why this happens.
Consider the effect of protons on electron attraction.
Compare and contrast the reactivity of alkali metals to that of noble gases and justify your answer.
Think about their electron configurations.
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