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2 April, 03:23

What are two characteristics of Technetium and two characteristics of Tungsten?

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  1. 2 April, 03:46
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    Two characteristics of Technetium:

    1) Technetium is a rare, silver-gray metal that tarnishes slowly in moist air.

    2) In powder form, it burns in oxygen to form the heptoxide (Tc2O7)

    Two characteristics of Tungsten:

    1) Tungsten is a very hard, dense, silvery-white.

    2) Tungsten is lustrous metal that tarnishes in air, forming a protective oxide coating.
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