Electron Configuration

understand how electrons are configured. Today, this will be explored in the lab by conducting the 'flame test' experiment.

KEYWORDS: electron configuration, shells, valence,

Let's watch this video below,

it is a great little summary of atoms.

It also introduces our next topic -

'electron configuration'

(how atoms are arranged).

INTRODUCING... ELECTRON CONFIGURATION!

Write this up in your workbooks.

The Electron Hotel .pdf

electron shells

CHEM 9.1 ELECTRON SHELLS

A flame test can work to identify the metal ion (a charged particle) in a solution. The chemical compound (X Chloride) is heated and a coloured flame is made.

It can be deduced which metal ion is in the solution according to the colour released

when the solution is heated in a blue flame.

The colours are made when the valence electrons gain energy from the flame and move up from 'ground state' to the next energy level. They are said to be in an 'excited state' at this point. Shortly after, they will move back down to their original position ("ground state" again) and as they do this they release energy. This energy emission is seen as coloured light.

WRITE this investigation up in your books as a scientific experiment.

AIM

HYPOTHESIS

MATERIALS

METHOD

RESULTS AND DISCUSSION

CONCLUSION

flame test image (id of elements)

Flame Test - Javalab* This simulation take the spectral data from NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY. When heat is applied to the atoms, some electrons can have high energy levels and fall to the lower levels. Some electrons emit as much energy...

ONLINE HOMEWORK TASK - DUE 13TH FEBRUARY.

Atomic structureBasics on Atomic structure

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