[Answer] 4. I am trying to extract a sample from a rock, and am told to continue drilling. What do I do?

Step 1 : Introduction to the question "4. I am trying to extract a sample from a rock, and am told to continue drilling. What do I do?"

...1. Osmium 2. Calcium 3. Boron 4. Radium Boron, symbol B and atomic number 5, is one of those elements that is in between a metal and a non-metal. It is used primarily as a semiconductor. In terms of chemical make-up, boron is closer to silicon than it is to aluminium, despite them being in the same group.

Step 2 : Answer to the question "4. I am trying to extract a sample from a rock, and am told to continue drilling. What do I do?"

Boron:

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