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Hunter-Best [27]
3 years ago
8

An electron in a hydrogen atom is excited with electrical energy to an excited state with n = 2. The atom then emits a photon. W

hat is the value of n for the electron following the emission?
Chemistry
1 answer:
Delicious77 [7]3 years ago
3 0

Answer:

The correct answer is n = 1

Explanation:

The moment the photon is emitted, the electron transaction occurs from a higher main energy level to a lower main energy level. Considering that the only main energy level below n = 2 is n = 1, so this is the energy level the electron must transition when the photon is emitted.

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A metalloid is a type of chemical element which has a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals. There is no standard definition of a metalloid and no complete agreement on which elements are metalloids. Despite the lack of specificity, the term remains in use in the literature of chemistry.

A series of six elements called the metalloids separate the metals from the nonmetals in the periodic table. The metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. These elements look metallic; however, they do not conduct electricity as well as metals so they are semiconductors. They are semiconductors because their electrons are more tightly bound to their nuclei than are those of metallic conductors. Their chemical behavior falls between that of metals and nonmetals. For example, the pure metalloids form covalent crystals like the nonmetals, but like the metals, they generally do not form monatomic anions. This intermediate behavior is in part due to their intermediate electronegativity values. In this section, we will briefly discuss the chemical behavior of metalloids and deal with two of these elements—boron and silicon—in more detail.

Explanation:

i hope this helps you :)

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