Which of these is NOT true about the outer core? Question 4 options: It is mostly made up of iron and nickel. It is mostly liquid. It has a higher temperature than the inner core. atoms within it form a powerful magnetic field.

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