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Use the periodic table to compare the sizes of ionic radii with the corresponding atomic radii or other ionic radii. Choose from smaller and larger in the blanks below


A sodium cation is______ (larger/smaller) than a sodium atom

A phosphorus anion is ________(larger/smaller) than a phosphorus atom

A magnesium ion is_______(larger/smaller) than a sodium ion

A chlorine ion is________(larger/smaller) than a phosphorus ion

A potassium ion is________(larger/smaller) than a sodium ion

Verified Answer :

  1. smaller
    2.smaller
    3.larger
    4.larger
    5.smaller
     2. ... its Larger. because The extra electrons add to the volume of the atom. Since they're just filling in levels that are already partially filled, it isn't by much, but they do push on the other electrons by way of their charge, decreasing the density of the 3-minus ion relative to that of the neutral atom.5.Na+ ions are smaller than K+ ions because K+ ions are farther down the periodic table, which causes atomic radius to increase because the strength of the bonds decreases (there are more elementary particles to attract, i.e. electrons, protons, neutrons), and they become more spread out. Also, K+ has more protons than Na+ ions.   so yeah thats how i got my answer ever thou i got number 2 wrong 
zer0sally

A sodium cation is ( SMALLER) than a sodium atom.

A phosphorus anion is (LARGER) than a phosphorus atom.

A magnesium ion is (SMALLER) than a sodium ion.

A chlorine ion is (SMALLER) than a phosphorus ion.

A potassium ion is (LARGER) than a sodium ion.


answers these are correct .

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