题目内容

The electrons in which subshell experience the largest effective nuclear charge in a multielectron atom? ( )

A. 4s
B. 4p
C. 4d
D. 4f

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Which set is arrange in order of increasing radii? ( )

A. Br -
B. Cl -
Cl -
D. Br -

In which series are the atoms arranged in order of decreasing ionization energy? ( )

A. Sr > Ca > Mg
B. Li > Be > B
C. Ne > Na > Mg
D. Cl > Br > I

Which species have more than eight electrons around the central atom? ( )

A. BF3
BrF3
C. NF3
D. PF3

Which chloride should exhibit the most covalent (least ionic) type of bond? ( )

AlCl3
BCl3
C. KCl
D. MgCl2

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