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natita [175]
2 years ago
8

Which two properties apply to most elements that conducts heat: malleable, brittle, highly combustible, has free electrons

Chemistry
1 answer:
Airida [17]2 years ago
4 0

Answer:

malleable, has free electrons

Explanation:

The two properties that applies to most elements that conducts heat is that they are malleable and they have free electrons.

Most substances that conducts heat readily are metals.

  • Metals are held together by metallic bonding.
  • For a metallic bonds to form, there must be attraction between the positive nuclei of all the closely packed atoms in the lattice and the electron cloud jointly formed by all the atoms by losing their outermost shell electrons.
  • The physical properties of metals such as malleability and conduction is due  to this bond type.  
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Assuming that both cases describe hydrogen‑like atoms with one electron, More energy is emitted or absorbed for case 2. The correct option is D.

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The energy of the electron decreases as it changes levels, and emission of photons happens in the atom.

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Thus, the correct option is D, More energy is emitted or absorbed for case 2.

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