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
H• •Be• •H --> H:Be:H
Since there are 4 valence electrons in total, Beryllium has 2 and Hydrogen has 2. You would put the Be in the middle because there is only 1 of them.
Answer:
The main function of the cell membrane is to protect the cell from the outer environment.