Im assuming, if you find rare earth elements, it is important to the technological world bc you can make more products more better, and even invent new and more modern things.
Answer: 2.02 J/g°C
Explanation:
To find the heat capacity, we have to manipulate the equation for heat.
q=mCΔT becomes C=q/(mΔT) to find heat capacity. Since we are given our values, we can plug in to find C.

*Please ignore the capital A in front of the °C. In order to have ° in the equaiton, the A pops up.

Phosphorous has three lone electrons that need pairing. Similar to how carbon has 4 lone electrons, and forms CH4