The element boron (b, atomic number 5 and atomic mass 11) is right above aluminum (al, atomic number 13 and atomic mass 27) in the periodic table. how many more electrons does aluminum have than boron? why?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?