Advertisements
Advertisements
Question
The atom of aluminium is represented by 27Al13. Write down the number of electrons in the different orbits or shells in one atom of aluminium.
Solution
27Al13 Ato,ic mass = (P + n) = A
Atomic number 13 = P = e = Z
Number of electrons Z = 13
APPEARS IN
RELATED QUESTIONS
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 an M shell of the atom can accommodate?
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon
(ii) Chlorine
An element has atomic number 13 and an atomic mass of 27.
(a) How many electrons are there in each atom of the element ?
(b) How are these electrons distributed in the various energy levels ?
Which of the following is the correct electronic configuration of sodium?
The atom of an element X has 7 electrons in its M shell.
(a) Write the electronic configuration of element X.
(b) What is the atomic number of element X?
(c) Is it a metal or a non-metal?
(d) What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
(e) What could element X be?
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.
Explain the octet rule for the formation of –
Nitrogen molecule from two nitrogen atoms.
Name an element which has the same number of electrons in its first and second shell.
The electronic configuration of ‘Cl’ is ______.
