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18 June, 23:56

Choose the correct statement regarding the relative size of atoms:

A) Atoms on the right side of the periodic table are larger than those on the left, because those on the right have more total electrons.

B) Atoms on the left side of the periodic table are larger than those on the right, because those on the right have more valence electrons.

C) Atoms on the left side of the periodic table are larger than those on the right, because those on the right have more total protons.

D) Atoms on the right side of the periodic table are larger than those on the left because those on the right have more total protons.

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  1. 19 June, 03:52
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    The atoms on left side are larger than the atoms on the right side of the periodic table because those on the right have more proton's.

    Explanation:

    As we travel along a period in a periodic table then the atomic radii decreases

    This is because as we travel along a period we have that the atomic number of the atoms increases which means the the number of proton's increased

    But the electron's add to the same outer shell throughout the period, which means the effective nuclear charge increases which pulls the outer electrons toward's the nucleus and the size decreases.

    Therefore the atoms on left side are larger than the atoms on the right side of the periodic table because those on the right have more proton's.
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