By reacting, an element that does not have a complete set of valence electrons can acquire an electron configuration similar to

Question

3 years ago

12

By reacting, an element that does not have a complete set of valence electrons can acquire an electron configuration similar to

that of a noble gas.Why is a noble gas different from other elements?
Its highest electron-energy level is filled.

It’s highest electron-energy level has one electron.

It has a single electron-energy level.

Its highest electron-energy level is unoccupied.

Physics

2 answers:

Lunna [17] · Answer 1 · 2022-04-22T18:50:37+03:00

Option (A) is correct.

A noble gas is different from other elements because its highest electron energy level is completely filled.The examples of noble gases are helium, neon, Argon , krypton,Xenon , radon.

All the noble gases have completely filled outermost shell. for example, Helium has two electrons and both of them are present in first shell. Neon has 10 electrons, so its electronic configuration is 2,8.It has two electrons in the first shell and eight electrons in the second shell. Thus the outermost shell of both Helium and Neon is completely filled.

This property of having completely filled outermost shells makes noble gases different from the rest of the elements.These noble gases are very less reactive .

Marina CMI [18] · Answer 2 · 2022-04-22T20:35:53+03:00

Marina CMI [18]3 years ago

3 0

Answer:Its highest electron-energy level is filled.

Explanation: