helium has 2 electrons as its atomic number is 2
Helium has 2 valence electrons.
Helium has two valence electrons
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
Helium has 8 valence electrons. It is a noble gas. none = 0
Helium has 2 valence electrons, and it's the only noble gas that doesn't have 8 valence electrons.
Helium atom has 2 electrons.
nitrogen has 5 valence electrons. carbon has 4 valence electrons.
it has 2 electrons i think you can tell by subtracting both numbers together
A neutral atom can have a maximum of 8 valence electrons, following the octet rule. This applies to elements in the second period and beyond on the periodic table. Exceptions include hydrogen and helium, which can have a maximum of 2 valence electrons.
2 valence electrons
2
Helium has 2 valence electrons.