Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
(a) Electronic configuration of the element X is
Element X : \[{\underset{2}{\text{ K }}\underset{8}{\text{ L }}\underset{7}{\text{ M }}}\]
(b) Atomic number of the element X will be 17.
(c) Element X is a non-metal because there are 7 electrons in its outermost orbit. In order to complete its octet (to get 8 electrons), it will gain one electron. An element which gains electrons in order to complete its octet is a non-metal.
(d) The element will form an anion by gaining an extra electron in order to complete its octet.
Symbol of an ion of X will be X–.(e) X is Chlorine.
APPEARS IN
संबंधित प्रश्न
What is the Electronic Configuration of a Hydrogen Atom?
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).
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 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 is meant by the term orbits
The following element is given \[\ce{_3U}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
Total number of electrons that can be accommodated in an orbit is given by __________.
