Question

Elements with stable electronic
configurations have eight electrons in
their valence shell. They are
a) halogens b) metals
c) noble gases
d) non metals​

Answer 1

Answer:

Helium belongs to the 1st period of the periodic table and has an atomic number of two.

The two electron fills the 1s orbital and hence has completely filled valence shell.

That's why Helium is the only noble gas with 2 electrons in its valence shell.

Explanation:

please mark me as brainliest

Answer 2

Answer:

noble gas

Explanation:

hope I am right any more help