<span>8.278 g/mL
The definition of density is mass per volume. So what you need to do is divide the known mass by the known volume. So
1.663 g / 0.2009 mL = 8.27775 g/mL
But you also have to keep track of significant figures. Since both 1.663 and 0.2009 have 4 significant figures each, you need to round the result to 4 significant figures. So
8.27775 g/mL = 8.278 g/mL</span>
Precision relates to how close the answers are to each other, so I’d think it would be D because of the limited range between data points.
Answer:
4
Explanation:
Si has atomic number 14 so the electronic configuration 2,8,4
[Ar] 4s²
Let me know if you want a step by step!
Hope that helps
