- Trending Categories
- Data Structure
- Operating System
- MS Excel
- C Programming
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Write down the electron distribution of chlorine atom. How many electrons are there in the L shell? (Atomic number of chlorine is 17).
The atomic number of chlorine atom is 17.
K L M
2 8 7
Hence, the L shell of chlorine contains 8 electrons.
- Related Articles
- In electron dot structure, the valence shell electrons are represented by crosses or dots.(a) The atomic number of chlorine is 17. Write its electronic configuration.(b) Draw the electron dot structure of chlorine molecule.
- 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?
- (a) Write down the electron arrangement in (i) a magnesium atom, and (ii) a chlorine atom.(b) How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) a chlorine atom. (c) Show the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons. (d) State whether magnesium chloride will conduct electricity or not. Give reason for your answer. (e) Why are covalent compounds generally poor conductors of electricity?
- (a) The atomic number of sodium is 11. What is the number of electrons in Na+?(b) The atomic number of chlorine is 17. What is the number of electrons in Cl-?
- (a) Write down the electronic configuration of (i) sodium atom, and (ii) chlorine atom.(b) How many electrons are there in the outermost shell of (i) a sodium atom, and (ii) a chlorine atom? (c) Show the formation of NaCl from sodium and chlorine atoms by the transfer of electron(s). (d) Why has sodium chloride a high melting point? (e) Name the anode and the cathode used in the electrolytic refining of impure copper metal.
- Draw the atomic structure of(i) an atom with same number of sub-atomic particles, (ii) an atom with same number of electrons in L and M shell.
- What is the maximum number of electrons which can be accommodated in the L 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
- 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?
- Fill in the blanks in the following statements :(a) The number of protons in the nucleus of an atom is called its ....................(b) The total number of protons and neutrons in the nucleus of an atom is called its ....................(c) An atom has atomic mass number 23 and atomic number 11. The atom has .................... electrons.(d) An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of the atom is ....................(e) If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is ....................(f) Almost all the mass of an atom is concentrated in a small region of space called the ....................(g) Cathode rays are a beam of fast-moving ....................(h) The anode rays obtained from hydrogen gas consist of particles called ....................(i) The maximum number of electrons that can be accommodated in L shell are ....................(j) The maximum number of electrons that can go into the M shell is ....................(k) The subatomic particle not present in a hydrogen atom is ....................(l) The electron has .................... charge, the proton has .................... charge, and the neutron has .................... charge.
- (a) What are valence electrons? Where are valence electrons situated in an atom?(b) What is the number of valence electrons in the atoms of an element having atomic number 13? Name the valence shell of this atom.
- Atomic Mass exists as a whole number, why do we write the atomic mass of chlorine as 35.5.
- An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom?
- (a) Give the electron configuration of magnesium and chlorine.(b) Write the electron-dot structures of magnesium and chlorine atoms. (c) Describe the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons. (d) What type of chemical bonds are present in the magnesium chloride formed? (e) Why do such compounds have high melting points?
- (a) Give the electronic configurations of sodium and chlorine.(b)Write the electron-dot structures for sodium and chlorine atoms.(c) Describe the formation of sodium chloride from sodium and chlorine by the transfer of electrons. What changes take place in the electronic configurations of sodium and chlorine during the formation of sodium chloride? (d) Write any two properties of ionic compounds.