A Is the Sequence Na,Mg,Al,Si,and P

question 1

Multiple Choice

A is the sequence Na,Mg,Al,Si,and P.B is the sequence He,Ne,Ar,Kr,and Xe.Which statement below is true?

• A)The members of A are decreasing in size.
• B)The members of B have larger radii than those of A,respectively.That is He > Na,Ne > Mg,etc.
• C)The members of A have larger radii than those of B,respectively.
• D)The members of B are decreasing in size.
• E)All the members of A are isoelectronic.

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