Electron Configuration?

Question

What do the term "electron configuration" means,
How do electrons move from a "shell" to another,
What are the electrons numbers of two of the elements you provided?

Answer 1

well the only thing I know about electon configuration is that on the perdiodic table there is an s block a d block a p block and an f block and to lets say do the configuration of calcium which has 20 somethings dont know you would go 1s2,2s2,2p6,3s2,3p6, 4s2 and those numbers add up to 20 which=Ca which =calcium.

Answer 2

a)'Electron Configuration' means the structure of the electron structure,i.e. number of electron in an atom.
b)Electrons will not move from a "shell" to another, the electrons are 'filled up' at the first shell first before the second shell. That's whythat's no moving shell in an atom.
c)Remember, for the first 20 element in Periodic Table, a stable electron arrangement is 2.8.8, an octet structure.
For Hydrogen, the electron arrangement is 1,because it only contain 1 electron.
For Calcium, the arrangement is 2.8.8, it has 20 electron.

Answer 3

It means how electrons are arranged in different shells and subshells within an atom.
Electrons have specific shells where they can revolve without radiating energy. But if energy is supplied they can move from lower to higher shell. Again the electron may emit the energy and come to the lower shell.

Read Bohr's postulates for details.

Answer 4

Hi. Here is part of it. The electrons absorb photons and jump 'up' a shell or two depending on how energetic the photon was.