This is true.
You are prolly asking this for an online true/false test or something, but the answer is no, not necessarily. They do always have the same number of electrons and protons however.
false they have the same number of protons, but varying numbers of neutrons
Protons and neutrons.
8 protons and neutrons does an oxygen of an atomOxygen atoms have 8 protons and most of the time 8 neutrons.
6 protons. The number of neutrons varies, but the most common isotope has 6 neutrons.
10 protons, 12 neutrons
4 protons and 4 neutrons
In the most abundant isotope of iron, there are 26 protons and 26 neutrons.
Boron has 5 neutrons and 5 protons for its most common isotope
Boron has 5 neutrons and 5 protons for its most common isotope
No. Even atoms of the same element will vary in the number of neutrons in their nucleus. For example, carbon (6 protons) has isotopes with 6, 7, and 8 neutrons. The most common isotope of hydrogen (1 proton) does not have any neutrons. While the most common isotopes of the lighter elements generally have the same number of protons and neutrons, heavier elements will have more neutrons than protons. For example the most common most stable isotope of uranium (92 protons) has 146 neutrons.
Neutrons and protons.