Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
27Al13 Ato,ic mass = (P + n) = A
Atomic number 13 = P = e = Z
Number of neutrons = A − Z = 27 − 13 = 14
APPEARS IN
संबंधित प्रश्न
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
What is the maximum number of electrons which can be accommodated in the L shell of an atom?
What is the maximum number of electrons which can be accommodated in the :
(a) innermost shell of an atom?
(b) outermost 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
Which of the following is the correct electronic configuration of sodium?
The correct electronic configuration of a chloride ion is :
The following element is given \[\ce{_20Z}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
The electronic configuration of an atom is 2,8,3. The valency of the atom is ______.
The maximum No. of electrons that can be accommodated in the M shell is ______.
Atomic numbers of A and B are 18 and 19 respectively. What is the electronic configuration of A and B?
