intel x86,can read or write a u32 in an anjust position ?

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Date: 03/29/05 

Date: Tue, 29 Mar 2005 22:59:21 +0800

When we visit memory in intel x86 system, can we read or write a
u32(long or dword) in an anjust position ??

memory :
F0 F1 F2 F3 F4 F5 F6 F7 (address)

for example, can we write or read a u32 at F1(address)?
and can we write or read a u16 at F1(address)?? 

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