N2 + 3H2 => 2 NH3 In the reaction above, the coefficient of H2 is . The subscript of H2 is .

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Aconductor easily transfer heat