I believe the answer would be D.
Sodium loses an electron and chlorine gains an electron.
They can find out if there are going to be any earthquakes hitting earths surface soon and how big or small they will be and how long and how we should prepare for them
Answer:

Explanation:
- State of benzene at RTP = liquid
- State of chloroform at RTP = liquid
- Boiling point of benzene = 80.1 °C
- Boiling point of chloroform = 61.2 °C
Since, both of the chemicals are liquids, we can separate it by the process of distillation.
<u>Distillation:</u>
- is the process in which we separate two liquids on the basis of their difference in boiling points.
<u>How it works:</u>
Since chloroform has less boiling point, it will evaporate and collected first and benzene will follow it after sometime.
- Apparatus of distillation is in the attached file.
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Answer:
Sodium
(Na)
Just count the electrons and search which atom it is.