Not necessarily, the number of electrons depend on the period in which the element is contained. For instance the first period ends at 2, second and third at 8, fourth and fifth at 18, sixth and seventh at 32.
Yes, krypton has eight 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.
Xenon has 8 valence electrons.
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No, eight valence electrons completely fills the valence band and makes the atom inert. The most reactive atoms have either one valence electron or seven valence electrons.
The most valence electrons an atom can contain is eight.
A krypton atom has 8 valence electrons in the 4s and 4p orbitals.
These are the noble gases which have a complete valence shell.
eight
Eight, 8.
Argon has 8 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.