C4- Atoms 0.0 / 5 ? ChemistryAtomsGCSEOCR Created by: BeccaJ15Created on: 26-05-16 14:01 The Nucleus It is in the middle of the atom and contains protons and neutrons. It has a positive charge because of the protons. 1 of 10 The Electrons These are located around the nucleus. They are negatively charged and have NO mass 2 of 10 Protons They are located around the outer shells. They are positively charged and have a relative mass of +1 3 of 10 Lithium It is in Group 1 of the Periodic Table. Produces a red flame when heated 4 of 10 Sodium It is in Group 1 of the Periodic Table. Produces a yellow/orange flame. 5 of 10 Potassium Is in Group 1 of the Periodic Table. Produces a lilac flame. 6 of 10 Line Spectrum When heated, the electrons in an atom release energy as light. The wavelengths emitted can be recorded as a line spectrum. 7 of 10 Line Spectrum Different elements emit different wavelengths of light. This is due to eachy element havng a different electron arrangement. 8 of 10 Which element were discovered by their line spectrum? Caesium and Rubium 9 of 10 Line Spectrum It can be used to identify elements. The technique used to produce line spectrum is called spectroscopy. 10 of 10
Comments
No comments have yet been made