English
Maharashtra State BoardSSC (English Medium) 8th Standard

The electronic configuration magnesium is 2, 8, 2. From this it is understood that the valence shell of magnesium is ______. - Marathi (Second Language) [मराठी (द्वितीय भाषा)]

Advertisements
Advertisements

Question

The electronic configuration magnesium is 2, 8, 2. From this it is understood that the valence shell of magnesium is ______.

Fill in the Blanks

Solution

The electronic configuration magnesium is 2, 8, 2. From this, it is understood that the valence shell of magnesium is M shell.

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Inside the Atom - Exercise [Page 38]

APPEARS IN

Balbharati Science [English] 8 Standard Maharashtra State Board
Chapter 5 Inside the Atom
Exercise | Q 5.4 | Page 38
Balbharati Integrated 8 Standard Part 2 [English Medium] Maharashtra State Board
Chapter 4.1 Inside the Atom
Exercises | Q 5. d. | Page 86

RELATED QUESTIONS

What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).


Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?


From the Symbol `""_15^31"P"`, State : Electron Configuration of Phosphorus.


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?


Give scientific reason.

Atoms are stable though negatively charged electron is revolving within it. 


Draw a neat labelled diagram.

Diagramatic sketch of electronic configurations of magnesium  (Atomic number 12)


The atom of aluminium is represented by 27Al13. Write down the number of protons in the different orbits or shells in one atom of aluminium.


Explain the arrangement and distribution of electrons in the various shells with reference to an atom in general and to an atom of potassium ‘3919K’ with special reference to the 2n2 rule.


The following element is given \[\ce{_20Z}\]. 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 __________.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×