Which of the following statements is true? the moon generates its own light.
the whole moon is lit by the sun at the same time.
there is no day or night on the moon.
only half the moon is lit by the sun at any one time.

Only half of the moon is lit by the sun at any time.

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