7.Considere la siguiente tabla periódica abreviada, en la que los elementos se han representado con símbolos ficticios.

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

In any atom of any element, you will find protons and neutrons in the nucleus of any atom