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General chemical properties of Metals. The chemistry of metals is studied by analysing their reactions with water, dilute acid and oxygen. Based on these reactions a reactivity series of metals can be produced. Reactivity with water. Some metals react with water, either warm or cold, or with steam.
- Properties of metals
B X is a pure metal and Y is an alloy. C X is a solid and Y...
- Properties of metals
B X is a pure metal and Y is an alloy. C X is a solid and Y is a liquid. D X is harder and stronger than Y. 3. Which statement is correct for metals? all. A conduct electricity when molten. B gain electrons when they form ions. C have a low density.
23. Which element is a metal? 24. Pure metals conduct electricity and can be hammered into different shapes. Why are metals sometimes used as alloys? A Alloys are cheaper than the metals they are made from. B Alloys are easier to hammer into different shapes. C Alloys are harder and keep their shape better. D Alloys conduct electricity better. 25.
properties of metals. • When a metal is hammered into a sheet or drawn into a wire, it does not break because the ions are in layers that slide past one another without losing their attraction to the electron sea. • Metals are also good conductors of electricity because the outer-level electrons are weakly held and can move relatively feely.
• Metalloids (metal-like) have properties of both metals and non-metals. • They are solids that can be shiny or dull. • They conduct heat and electricity better than non-metals but not as well as metals.
Define several properties of metals. Observe metal failures and exploring why they occur. Unit data: 1. Key words: Properties, Metals, Alloys. 2. Type of unit/mode of presentation: Guided discussion with follow-up introductory experiment. 3. Time required: 30 to 45 minutes in class. 4. Pre-requisite knowledge: None. 5.
Students investigate the physical properties of a set of elements. They investigate physical properties including appearance, malleability, density, and solubility in water at room temperature. They are introduced to the concept that each element is composed of a specific type of atom. MATERIALS AND ADVANCE PREPARATION For the teacher
