A single ringed nitrogeo base is thymine (C)
Answer:

Explanation:
The equation for mass is:

We plug in the given values into the equation:


Answer:
I2; I–I bond length = 266 pm
Explanation:
Bond length is inversely related to bond strength. The longer the bond length, the weaker the bond. The shorter the bond length the stronger the bond. A large bond distance implies that there is poor interaction between the atoms involved in the bond. A long bond distance or bond length may even indicate the absence of covalent interaction between the atoms involved.
Explanation:
o2- Due to lowest Zeff.
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