What form is radium usually found in nature?

Radium can be found in the carnotite sands of Colorado. Greater amounts can be found in a region of Canada known as the Great Bear Lake. Radium can also be found in large amounts in some African countries, such as Zaire.

The answer is d) by requesting advice on science internet sites

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.