It depends on the charge of the atom/ion however in a no-charged state Helium will have 2 electrons. If the Helium is charged negatively will have more. If it is charged possitively (up to 2+) it will have less. As Helium is a noble gas, it is rarely found in a charged state!
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
7 Helium contains two electrons in all naturally occurring states.
There are 2 electrons in level one of a helium atom.
Helium is an element- the second one in the periodic table.
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)
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
7 Helium contains two electrons in all naturally occurring states.
There are 2 electrons in level one of a helium atom.
Helium is an element- the second one in the periodic table.
the largest number of electrons an atom of helium can have is 2, because it is in the first period, which means it can only have one energy level, which has a maximum capacity of two electrons
Helium's atomic number is 2. Therefore, it has 2 positively charged protons in its nucleus. To balance the total charge then, one atom of helium will also have 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 electrons in the 1s orbital. This also means it has 2 valence electrons. For all neutral atoms, the number of electrons is equal to the number of protons (the same as the atomic number). i suggest you get a periodic table.
Helium has one kind of atom: helium.
Niether. In 2015, the largest known atom belonged to ununoctium.
No it does not, there are shells and orbitals that determines how reactive an atom is. Helium has 2 valence electrons, which fill up its entire shell, so it is like a noble gas. the other noble gasses have 8 valence electrons, which fill up their entire shell.
because it only has one orbital