Silicon has a structure just like diamond. (It doesn''t make graphite, because mostly π-bonds are weak for the second-row elements.) However, silicon has a smaller band gap than diamond. Germanium, which is below silicon in the periodic table, has the same
Why does silicon exhibit less diversity of compounds than carbon does? Question Asked Jan 5, 2020 37 views Explain why graphite can conduct electricity, but diamond does not. A: The reason is as follows, About FAQ Sitemap Refer a Friend Honor Code |
Question: What makes metals like copper conductive to electricity? Copper: Copper is a transition metal that is in the fourth row of the periodic table. Copper can conduct electricity well because
1 Carbon and silicon are elements in Group IV. Both elements have macromolecular structures. (a) Diamond and graphite are two forms of the element carbon. (i) Explain why diamond is …
Describe the structure and bonding in silicon dioxide and explain why it is a suitable material for making welding blankets. €€€€Explain why graphite can conduct electricity ..
A semiconductor can conduct electricity or act as an insulal or. Microchips are mostly fabried from silicon because of its effective semi-conducting properties. Semiconductor microchips are ubiquitous in almost all electronic devices. Engineers use silicon to
The connectors should conduct electricity very well and should not corrode. By Alphathon (Own work) [CC-BY-SA-3.0 or GFDL], via Wikimedia Commons The …
Explain why graphite conduct electricity but What metals are not good conductors? What is the relationship between resistivity and Calculate the Intrinsic conductivity if silicon at
This is the degree to which they conduct electricity or prevent the conduction of electricity. When a substance aids in electrical conduction to a significant degree, it is often labeled a conductor.
Science is pretty neat, especially this one where we are making a graphite circuit. We are going to put our electricity science to the test and see if we can make a closed circuit and turn the light bulb on with using just a battery, pencil, and light. Are you in? Make
16/8/2020· This page describes the structures of the Period 3 elements from sodium to argon, and shows how these structures can be used to explain the physical properties of the elements. Sodium, magnesium and aluminium are all good conductors of electricity. Silicon is a semiconduct…
Graphite (/ˈɡræfaɪt/), archaically referred to as pluago, is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs naturally in this form and is the most stable form of carbon under standard conditions. Under high pressures and temperatures it converts to diamond. Graphite is used in pencils
Describe and explain the similarities and differences between the structures of diamond and graphite. Diamond and graphite are both allotropes of carbon. This means they are both made up of carbon atoms arranged differently and exist in the same physical state.
Explain why graphite is able to conduct electricity? Carbon atoms have 4 electrons in their outer shell so in graphite one is left in each outer shell. These are free to move along the layers and are called delocalised electrons. This allows graphite to conduct
Accept other valid uses of graphite along with a suitable explanation. b. Examiners report 11M.2.sl.TZ1.7d.iii: Explain why silicon dioxide is a solid and carbon dioxide is a gas at room temperature. 11M.2.sl.TZ1.7d.ii: Describe the structure and bonding in
The silicon dioxide molecule can be described as a three-dimensional network of tetrahedra cells, with four oxygen atoms surrounding each silicon ion, shown in Figure 2.2a.The length of a Si-O bond is 0.162nm, while the normal distance between two oxide bonds is
4/1/2012· Silicon forms a giant covalent compound. It has no delocalised electrons and so cannot conduct electricity. Germanium is also in the same group as Silicon, so im guessing it also forms covalent compounds and not ionic or metallic compounds. Again, no
graphite and diamond, are shown below. Although they are both forms of carbon, graphite and diamond have different properties. 2 (a) (i) Diamond is much harder than graphite. Graphite can conduct electricity but diamond cannot. Explain why.
1 Chemical bonds, Ionic, Covalent, Metallic 2 2 24 3 38 4 How bond + structure relate to props 50 5 63 6 82 7 Structure + bonding carbon 97 Save My Exams! – The Home of Revision For more awesome GCSE and A level resources, visit us at /p>
Silicon is a semiconductor, meaning that it does conduct electricity. Unlike a typical metal, however, silicon gets better at conducting electricity as the temperature increases (metals get worse
LED light, a battery, and a resistor. Explain that the flow of electricity is from the high potential (+) terminal of the battery through the bulb (lighting it up), and back to the negative (-) terminal, in a continual flow. Soft graphite pencils (#2) Paper LED light 330 ohm
Exam Questions Two questions with very similar answers –but worded differently 1. Compare and explain the properties of diamond and graphite. Imagine this was a 6 mark exam question on the exam using the different headings to help you. In this question you will
Graphite – flat sheets, conducts electricity, each carbon atom forms 3 covalent bonds. Diamond – tetrahedral structure, each carbon atom forms 4 covalent bonds, does not conduct electricity. h i j Explain the differences and similarities between silicon dioxide
Q2. Silicon dioxide is used as a lining for furnaces. Furnaces can be used to melt iron for recycling. ©€Oleksiy Mark/iStock The diagram shows a small part of the structure of silicon dioxide. Explain why silicon dioxide is a suitable material for lining furnaces.
1/4/2020· Graphite is a good conductor of electricity because its electrons are delocalized or free to move around. Graphite is structured into planes with tightly bound atoms. There is a great deal of distance between planes, and they are bonded weakly together, allowing the
In describing conductors using the concept of band theory, it is best to focus on conductors that conduct electricity using mobile electrons. According to band theory, a conductor is simply a material that has its valence band and conduction band overlapping, allowing electrons to flow through the material with minimal applied voltage.
3/6/2019· Graphite, like silicon, is a semiconductor; it has electrical properties intermediate between insulators and conductors. So, in the activity, depending on the length of the graphite, the light bulb may be considerably dimmer than when a metal object is used.