He-4 isotope has 2 neutrons. He-3 isotope has 1 neutron
Helium-3 has 1 neutron and 2 electrons. Helium-4 has 2 neutrons and 2 electrons.
There are several isotopes of Helium and they have different numbers of neutrons. The simplest and most common is Helium-4 which has two neutrons
Helium has two neutrons and two protons in its nucleus.
There are particular isotopes that have similar number of electrons and neutrons. Some of these isotopes include hydrogen-2, helium-4, carbon-12 and nitrogen-14.
2 protons 3 neutrons
Helium-3 has 1 neutron and 2 electrons. Helium-4 has 2 neutrons and 2 electrons.
Helium has two protons and two neutrons (and two electrons).
2
2 neutrons
Helium-4 has 2 protons and 2 neutrons. The less common helium-3 has 2 protons but only 1 neutron. There are also several additional isotopes (that is, different number of neutrons), but those are unstable (radioactive).
He-4 isotope has 2 neutrons.
Helium has two protons, and, in its neutral state, two electrons. It can have either one or two neutrons.
There are several isotopes of Helium and they have different numbers of neutrons. The simplest and most common is Helium-4 which has two neutrons
Helium has two neutrons and two protons in its nucleus.
There are two neutrons in a helium atom, along with two protons and two electrons. Helium-4 is the most common and stable isotope of helium, with two protons and two neutrons.
There are particular isotopes that have similar number of electrons and neutrons. Some of these isotopes include hydrogen-2, helium-4, carbon-12 and nitrogen-14.
2 protons 3 neutrons