Question

omplete the following paragraph by choosing appropriate words for P, Q, R, S and T. Ps are good conductors of heat and electricity whereas Qs are not, R although is a non-metal but a good conductor of electricity. Metals are generally solid at room temperature whereas S is the only liquid metal. Non-metals are generally solids or gases but bromine is a liquid at room temperature​

Answer 1

Answer:Metals are good conductors of heat and electricity whereas Non-metals are not, Graphite although is a non-metal but a good conductor of electricity. Metals are generally solid at room temperature whereas Mercury is the only liquid metal. Non-metals are generally solids or gases but bromine is a liquid at room temperature.

Answer 2

ANSWER:-

Metals are good conductors of heat and electricity whereas Non-metals are not, Graphite although is a non-metal but a good conductor of electricity. Metals are generally solid at room temperature whereas Mercury is the only liquid metal. Non-metals are generally solids or gases but Bromine is a liquid at room temperature.

EXPLANATION:-

• P = Good conductor of electricity = Metals because they have free electrons.

• Q = Not good conductors of electricity = Non-metals because the conduction electrons are held tightly by the nucleus in them

• R = Non-metal but good conductor of electricity = Graphite because of the presence of the one delocalised electron, it is a good conductor of electricity.

• S. = Only liquid metal = Mercury because it is the only elemental metal that is liquid at room temperature.

• T = Non-metal liquid at room temperature = Bromine because it is the only elemental non-metal that is liquid at room temperature.

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