C. 115 is your best answer
There are 118 elements in the Periodic Table
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Sodium azide is a colorless inorganic salt that can decompose to give sodium and nitrogen. It is an ionic compound and it is very soluble in water, but it is very toxic. The decomposition reaction usually take place at a very high temperature of 300 degree Celsius under controlled conditions. The equation for the chemical reaction is given below:
2NaN3 = 3N2 + 2Na
Answer:
[He] 2s² 2p⁴
Explanation:
If you're looking for the answer in subshell form, here it is:
Quote:
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The volume of the entire object