2 electrons. The atomic number is the number of protons and however many protons there are, that is also the number of electrons.
Helium atom has 2 electrons.
Helium has only two electrons. It is the first noble gas in the periodic table and has a full outer electron shell.
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!
If you build an atom using two protons, two neutrons and two electrons you would build an atom of Helium. To be more-precise, this would create Helium-4 the common isotope of Helium.
Helium will have only 2 electrons
Helium atom has 2 electrons.
A neutral atom of helium has 2 electrons.
A neutral atom of helium has 2 electrons.
Helium has only two electrons. It is the first noble gas in the periodic table and has a full outer electron shell.
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!
If you build an atom using two protons, two neutrons and two electrons you would build an atom of Helium. To be more-precise, this would create Helium-4 the common isotope of Helium.
helium has 2 electrons as its atomic number is 2
Helium will have only 2 electrons
Two electrons.
7 Helium contains two electrons in all naturally occurring states.
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
2