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Periodic Trends- Chemistry questions with complete solutions
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Periodic Trends- Chemistry questions with complete solutions
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Periodic Trends- ChemistryAtomic Radius - correct answer ✔✔half the distance between adjacent nuclei or bonded nuclei
*no defined edge of atom because of electron cloud- can't measure from edge
Atomic Radius- Period Trend - correct answer ✔✔-left to right decrease
-increase in number of protons and valence electrons but same energy level; no further shielding so
stronger nuclear pull
Atomic Radius- Group Trend - correct answer ✔✔-going down atomic radius increases -there are more
energy levels causing more shielding and less nuclear pull
Ion - correct answer ✔✔a charged atom; formed when giving up or taking electrons; form ionic bonds
Cations - correct answer ✔✔-positively charged ion due to electron loss
-usually metal
Anion - correct answer ✔✔-negatively charged ion due to electron gain
-usually nonmetal
Ionic radius - correct answer ✔✔-half the distance between adjacent charged nuclei or bonded charged
nuclei (cations and anions)
Cation- Period Trend - correct answer ✔✔-radius decreases left to right
-losing electrons, nuclear pull greater because there are more protons than electrons
Transition from Anion to Cation- crossing over stair step line - correct answer ✔✔-radius increases
-gaining electrons, nuclear pull less because electrons outnumber protons
-more electron repulsion
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