Advertisements
Advertisements
प्रश्न
Which one of the following is a correct electronic configuration of sodium?
विकल्प
2, 8
8, 2, 1
2, 1, 8
2, 8, 1
Advertisements
उत्तर
2, 8, 1
Explanation:
The atomic number of sodium (Na) = 11
Its electronic configuration = 2, 8, 1
APPEARS IN
संबंधित प्रश्न
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon
(ii) Chlorine
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
Draw a neat labelled diagram.
Diagramatic sketch of electronic configuration of Argon (Atomic number 18)
The atom of aluminium is represented by 27Al13. Write down the number of neutrons in the different orbits or shells in one atom of aluminium.
The atom of aluminium is represented by 27Al13. Write down the number of the arrangement of electrons in the different orbits or shells in one atom of aluminium.
What are ‘energy levels’?
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
Give a reason for the following:
Helium is chemical extremely unreactive.
The electron distribution in an aluminium atom is
The outermost shell of an atom cannot accommodate electrons more than ______.
