Question

Name the element which has completely filled first shell.

Answer 1

Answer:

Your answer is Hydrogen

Hope it helps

Answer 2

Answer:

• Helium is the element that has completely filled the first shell.
• “Helium” has only one shell or only the first shell with 1n shell and has two electrons in it.
• “Helium has two electrons” completely filling the 1s orbital with “an electron configuration” of$1s^{2}.$
• It completely satisfies the “octet rule” and makes it a highly stable element.
• Helium is highly stable because of this electron configuration and doesn’t react with “other elements” and so is placed under noble or inert gases.