ChemCom

Periodic Trends and Bohr’s Model Activity Data / Data Processing

Bohr’s Model Data:

1 / 2 / 13 / 14 / 15 / 16 / 17 / 18
H
/ He
Li
/ Be / B / C / N / O / F / Ne
Na
/ Mg / Al / Si / P / S / Cl / Ar
K
/ Ca

Periodic Trends Data:

Atomic Radius / Ionization Energy / Metallic Reactivity
Atomic Radius in a Family:

Describe this trend in words:
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Atomic Radius in a Period:

Describe this trend in words:
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______ / Ionization Energy in a Family:

Describe this trend in words:
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Ionization Energy in a Period:

Describe this trend in words:
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______
______ / Metal Reactivity in a Family:

Describe this trend in words:
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Metal Reactivity in a Period:

Describe this trend in words:
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______

Data Processing:

A.  Describe two trends that are observed in the Bohr Model data.
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B.  When metals react, they almost always lose electrons. The easier it is for the metal to lose electrons, the more reactive the metal. What is the trend in metal reactivity?
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C.  Explain this trend in reactivity in a family using Bohr’s Model. (Use Coulomb’s Law here!)
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D.  Explain this trend in reactivity in a period using Bohr’s Model. (Use Coulomb’s Law here!)
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______/ E.  Which element in each of the two sets has the smallest atomic radius? Explain why.
K Li Na
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F.  Which element in each of the two sets has the smallest atomic radius? Explain why.
Al Mg Na
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G.  Which element in each of the two sets has the smallest atomic ionization energy? Explain why.
K Li Na
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H.  Which element in each of the two sets has the smallest ionization energy? Explain why.
Al Mg Na
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