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"18 atomic units" is a (semi) sensible mass (it ought to be "18 Atomic Mass units", but that's a minor quibble).
"18 atomic gram" is just nonsense.
That's the biggest difference.
What else can I help you with?
What is the difference between a mailman and water?
The difference between a mailman and water is water can be bottled and a mailman can't.
What is the difference between rubidium and seslium?
If you mean "What is the difference between rubidium and cesium?" then Rubidium and cesium are two different elements.They have similar properties but cesium is denser and has a higher atomic mass.Cesium also reacts more vigorously with water and air.
What is the difference between water and ecowater?
The main difference between water and ecowater is the hardness rating difference. For water testing and filter options, see your local water specialist.
What is the difference between fresh water and potable water?
the difference between fresh water and potable water is fresh water can come form the ground, and/or, ice burgs.
What is the difference between water loom and air jet loom?
difference between air jet loom and water jet loom
What is the difference between two things?
The difference between two things is what traits or characteristics set them apart; why they are different. For example:Water and IceThe difference between water and ice is that water is a liquid and water is not. Another thing is that ice is very cold and water can be warm.
What is the difference between constipation and diarrhea?
The difference between diarrhea and constipation is the water content of the stools.
Is there a mass difference between pure water and tap water?
No. Water is water.
What is the difference between warm water and cold water?
temperature
Is there a difference between tap water and rain water?
yes
What is the difference between water and H2O?
nothing
What is the scientific difference between diarrhea and constipation?
The difference between diarrhea and constipation is the water content of the stools.
