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 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 two protons present in a helium atom.
The normal helium atom has two protons and two neutrons in the nucleus, and two electrons in the "shell".
One.
beryllium has 4 protons and helium has 2 protons
Helium has two protons and two neutrons (and two electrons).