In the periodic table, barium sits directly underneath strontium. Propose two things that you can say about barium and strontium with just this information.
Question
In the periodic table, barium sits directly underneath strontium. Propose two things that you can say about barium and strontium with just this information.
Solution
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Similar Chemical Properties: Elements in the same group (vertical column) of the periodic table have similar chemical properties. This is because they have the same number of electrons in their outermost shell. So, we can say that Barium and Strontium, being in the same group, will have similar chemical properties.
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Atomic Size: As we move down a group in the periodic table, the atomic size increases. This is due to the addition of new energy levels (shells). Therefore, we can say that Barium, being directly underneath Strontium, will have a larger atomic size than Strontium.
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