Experiment purposeThomson's atom modelToolsDischarge tube - connecting wires - high voltage source - magnetSteps Turn on the electricity by pressing the button and then note the raysBring a magnet close to the discharge tube and note the effectConclusion ·      We......

the goal:The hydrogen atom discrete spectroscopyMaterials and tools:Hydrogen gas electrical discharge tube - triple glass prism - white screen - two vertical micro-slits opposite each other - metal rod - connecting wiresSteps:1-Connect the positive terminal of the voltage source to the base of the e......

Keywords: Atom – Proton – Neutron – Electron – Nucleus

Keywords: Atomic mass – Protons – Neutrons – Atom – Mass number

Keywords: Photoelectric effect – Electrons – Light – Emission

Keywords: Mass spectrometer – Ions – Mass – Charge – Separation

Objective: To identify materials that dissolve in water and materials that do not.Materials: Three transparent cups _ Water _ Salt _ Sugar _ Sand _ Stirring spoonSteps: Put some water in each cup. Add a small amount of salt, sugar, and sand to the three cups of water. Stir each cup using the spoon a......

This experiment demonstrates how adding a different element to a metal affects the arrangement of atoms and increases its hardness, using a simple bubble model.