Answer:
8
Explanation:
The atomic number refers to the number which identifies the element, which is the proton number.
Answer:
the ionic radius of the anion 
Explanation:
From the diagram shown below :
The anion
is located at the corners
The cation
is located at the body center
The Body diagonal length = 
∴ 
Given that :
(i.e the ratio of the ionic radius of the cation to the ionic radius of
the anion )

Also ; a = 664 pm
Then :

Therefore, the ionic radius of the anion 
True. Our earth Is getting hotter due to global warming.
Heat energy is absorbed by the substance.