Answer:
atomic radii is your answer I hope
Explanation:
Complete Question
The complete question is shown on the first uploaded image
Answer:
The mass is 
Explanation:
From the question we are told that
The Henry's Law constant is 
The volume of water is 
The partial pressure is 
The temperature is 
Henry's law is mathematically represented as
Where C is the concentration of sulfur hexafluoride(SP)
substituting value


The number of moles of SP is mathematically represented as

substituting value


The mass of SP that dissolved is

Where Z is the molar mass of SP which has a constant value of

So


Answer:
A. An atom
Explanation:
A large scale model is one that is bigger than the object itself. These are needed to visualise structures and behaviours that we cannot normally see. A large scale model is needed for small objects, such as an atom. Larger objects do not need<em> even bigger</em> models