2 protons 2 electrons 2 neutrons 2 protons 2 electrons 2 neutrons don't know
Helium has 2 protons and 2 electrons. He-3 and He-4 isotopes have 1 and 2 neutrons.
Helium-6 has two protons and electrons and four neutrons.
Protons: 2 neutrons: 2 electrons: 2 Helium-3: 2 protons, 1 neutron, 2 electrons Helium-4: 2 protons, 2 neutrons, 2 electrons
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
One atom of helium contains 2 protons and 2 electrons. The most abundant isotope of helium, helium-4, has 2 neutrons. The other, rare isotope of helium, helium-3, has 1 neutron. (Source: Wikipedia)
Helium has 2 protons and 2 electrons. He-3 and He-4 isotopes have 1 and 2 neutrons.
Helium-6 has two protons and electrons and four neutrons.
Protons: 2 neutrons: 2 electrons: 2 Helium-3: 2 protons, 1 neutron, 2 electrons Helium-4: 2 protons, 2 neutrons, 2 electrons
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
One atom of helium contains 2 protons and 2 electrons. The most abundant isotope of helium, helium-4, has 2 neutrons. The other, rare isotope of helium, helium-3, has 1 neutron. (Source: Wikipedia)
protrons=2 electrons=2 neutrons=2
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
Helium has 2 protons, 2 neutrons, and 2 electrons.
Helium has 2 protons, 2 neutrons, and 2 electrons. The atomic number of helium is 2, which indicates it has 2 protons and 2 electrons in a neutral atom.
2 protons, 2 electrons He-3 isotope has 1 neutron He-4 isotope has 2 neutrons
In normal Helium(He) atom there are 2 electrons, 2protons and 2 neutrons.
Helium has two protons, since its atomic number is two. It is an inert element so it also has two electrons. The number of neutrons depends entirely on the isotope. The most common and stable isotope of Helium has 2 neutrons.