Question

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Answer 1

Answer:

1) Mercury

2)mettalic wire

3) Mercury

4) metallic wire

Answer 2

Answer:

1.]

i) Mercury

ii) sodium metal

iii) Copper

iv) copper

Explanation:

i) Mercury is a dense, silvery d-block element. It is the only metal that is liquid at standard conditions for temperature and pressure. The only other element that is liquid under these conditions is bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature

ii)Sodium metal is soft enough to be cut with a knife. The alkali metals are the elements in Group 1 . They are lithium, sodium, potassium, rubidium, cesium, and francium.

iii) Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature. Most metals are pretty good conductors; however, apart from silver, copper is the best.

iv)Copper will transfer the most heat, followed by brass. Steel is the poorest conductor of heat.

2.] MALLEABLE : capable of being extended or shaped by beating with a hammer or by the pressure of rollers. 2a : capable of being altered or controlled by outside forces or influences. b : having a capacity for adaptive change.

DUCTILITY: Ductility is a mechanical property commonly described as a material's amenability to drawing. In materials science, ductility is defined by the degree to which a material can sustain plastic deformation under tensile stress before failure.

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