Which of the following element is a bad conductor of electricity? Element A is hard, mallcable, ductile and react with dilute acids to produce salt and hydrogen is a What is meant by "brittleness"? Which type of elements usually show brittleness: metals or non-metal Generally, non-metals are the conductors of electricity.
Which of the following is a good conductor Generally, non-metals are not conductors of electricity. Non-metals are generally the conductors of electricity.
Which of the following is the conductor of n Assertion :Graphite is a good conductor of electricity , however diamond belongs to the category of Assertion : Graphite is a good conductor of electricity, however diamond belongs to the category of What is a gel electrophoresis chamber. In pea plants what are the two alleles for color. Physics 20 cards. Which term explains whether an object's velocity has increased or decreased over time.
Which of these is a characteristic of nonmetals. What is the only factor needed to calculate change in velocity due to acceleration of gravity 9. What term is used to describe splitting a large atomic nucleus into two smaller ones. More answers. Q: What is an element that is brittle and a poor conductor? Write your answer Related questions. Which element is brittle in the solid phase and is a poor conductor of heat and the solid electricity? Element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity?
What does nonmetal mean? What does nonmetal means? Elements that have dull surfaces and are a poor conductor of heat and electricity? What is a element that is a poor conductor of thermal energy and electric current?
Is poor conductor is also poor heat the reason? Is usually a gas or brittle solid that is a poor conductor of electricity? A brittle element thats not good conductor of heat and electricity is? What element is a poor conductor of energy? Which property is associated with metals dull shiny brittle or poor conductor of electricity?
At STP an element that is brittle solid and a poor conductor of heat electricity could have atomic no of A. If testing show an element is a poor conductor of electricity it is probably a?
Is sulfur brittle in its solid phase and a poor conductor of heat and electricity? What 3 properties do all nonmetals have in common? Of the elements oxygen zinc and iodine which one is likely to be poor conductor of electricity and a brittle solid at room temperature? Of the elements oxygen zinc and iodine which one is likely to be poor conductor of electricity and a brittle solid at room temperture? Which element is a poor conductor of heat and electricity?
Which element is a poor conductor of heat? Luster : Metals have the quality of reflecting light from its surface and can be polished e. Malleability: Metals have the ability to withstand hammering and can be made into thin sheets known as foils a sugar cube chunk of gold can be pounded into a thin sheet which will cover a football field. Ductility: Metals can be drawn into wires.
Hardness: All metals are hard except sodium and potassium, which are soft and can be cut with a knife. Valency: Metals have 1 to 3 electrons in the outermost shell of their atoms. Conduction : Metals are good conductors because they have free electrons. Silver and copper are the two best conductors of heat and electricity. Lead is the poorest conductor of heat. Bismuth, mercury and iron are also poor conductors Density : Metals have high density and are very heavy.
Iridium and osmium have the highest densities where as lithium has the lowest density. Melting and Boiling Points : Metals have high melting and boiling point. Tungsten has the highest melting point where as silver has low boiling point. Sodium and potassium have low melting points. Chemical Properties of Metals Metals are electropositive elements that generally form basic or amphoteric oxides with oxygen. Other chemical properties include: Electropositive Character : Metals tend to have low ionization energies, and typically lose electrons i.
Example Would you expect it to be solid, liquid or gas at room temp? Solutions Oxides of metals are characteristically solid at room temp. Nonmetals Elements that tend to gain electrons to form anions during chemical reactions are called non-metals.
Physical Properties of nonmetals: Physical State : Most of the non-metals exist in two of the three states of matter at room temperature: gases oxygen and solids carbon. Non-Malleable and Ductile : Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets. Conduction : They are poor conductors of heat and electricity.
Luster: These have no metallic luster and do not reflect light Conductivity : Poor conductors of heat and electricity Melting and Boiling Points : The melting points of non-metals are generally lower than metals Seven non-metals exist under standard conditions as diatomic molecules : H 2 g N 2 g O 2 g F 2 g Cl 2 g Br 2 l I 2 l volatile liquid - evaporates readily.
Chemical Properties of Nonmetals Non-metals have a tendency to gain or share electrons with other atoms.
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