Advertisements
Advertisements
Question
Give a reason for the following:
Helium is chemical extremely unreactive.
Advertisements
Solution
Helium has its outermost shell completely filled i.e. 2 electrons in K shell.
APPEARS IN
RELATED QUESTIONS
What is the maximum number of electrons which can be accommodated in the K shell of an atom?
What is the maximum number of electrons which can be accommodated in the L shell of an atom?
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon
(ii) Chlorine
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).
From the Symbol `""_15^31"P"`, State : Electron Configuration of Phosphorus.
The electronic configuration magnesium is 2, 8, 2. From this it is understood that the valence shell of magnesium is ______.
Mention the basic tendency of an atom which makes it combine with other atoms
The following element is given \[\ce{_14X}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
Explain the electronic configuration of atoms with an illustration.
