Hydrogen Is Unique Among the Elements Because ________

question 67

Multiple Choice

Hydrogen is unique among the elements because ________. 1. It has only one valence electron.
2. It is the only element that can emit an atomic spectrum.
3. Its electron is not at all shielded from its nucleus.
4. It is the lightest element.
5. It is the only element to exist at room temperature as a diatomic gas.

• A)1, 2, 3, 4, 5
• B)1, 3, 4
• C)1, 2, 3, 4
• D)2, 3, 4
• E)3, 4

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Definitions:

Production Relationships

The correlations between input factors and the resulting output in the production process of goods or services.

Production Possibilities Frontier

A graph showing all the possible highest production levels for two or more products, given certain inputs.

Trade

The act of buying, selling, or exchanging goods and services between people, firms, or countries.

Consumption Combination

The mix of goods and services that a consumer chooses to consume at a given time based on their preferences and budget.