What does at.wt. stand for?

at.wt. stands for "atomic weight"

How to abbreviate "atomic weight"?

"atomic weight" can be abbreviated as at.wt.

What is the meaning of at.wt. abbreviation?

The meaning of at.wt. abbreviation is "atomic weight"

What does at.wt. mean?

at.wt. as abbreviation means "atomic weight"