Hydrogen!!!!!!!!!!!!!!!!!!
Just multiply 151 x 0.0001
That will equal:
0.00151 km or if you want to round it then it would be 0.02km
Answer:
1. c. group 15
2. a. group 1
3. c. m
Explanation:
1. and 2. you just have to know the charge rules.
3. m = mass number = total protons and neutrons
- Hope that helped! Please let me know if you need further explanation.