2 protons as its atomic number is 2
Helium has 2 protons.
beryllium has 4 protons. helium has 2 protons
2 protons
beryllium has 4 protons and helium has 2 protons
Helium has 2 protons.
Helium has 2 positive protons in its nucleus.
Helium is an element by itself with 2 protons
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)
There are 2 protons in a helium atom. Helium is the second lightest element on the periodic table, with an atomic number of 2, indicating the number of protons in its nucleus.
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
A helium atom has 2 protons, 2 neutrons, and 2 electrons.
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.