Podcast
Questions and Answers
What is a common property of nonmetals when solid?
What is a common property of nonmetals when solid?
- High density and luster
- Brittle or crumbly (correct)
- Good conductors of electricity
- Ductile and malleable
Which of the following is a characteristic of nonmetals?
Which of the following is a characteristic of nonmetals?
- High density and low electronegativity
- Tend to be pliable when solid
- Low density and high electronegativity (correct)
- Good conductors of heat and electricity
Which elements tend to make up the overwhelming majority of the Earth's crust, atmosphere, oceans, and biosphere?
Which elements tend to make up the overwhelming majority of the Earth's crust, atmosphere, oceans, and biosphere?
- Helium, neon, argon, krypton, and xenon
- Gold, silver, platinum, copper, and iron
- Hydrogen, carbon, nitrogen, oxygen, and silicon (correct)
- Sodium, potassium, magnesium, calcium, and aluminum
Which industries are mentioned as being integral to nonmetallic elements?
Which industries are mentioned as being integral to nonmetallic elements?
What tends to be the nature of oxides of nonmetals?
What tends to be the nature of oxides of nonmetals?
Which elements are considered to be present in organic compounds according to many authors?
Which elements are considered to be present in organic compounds according to many authors?
What is the defining characteristic of organic compounds according to some authors?
What is the defining characteristic of organic compounds according to some authors?
Which carbon-containing compound is considered organic?
Which carbon-containing compound is considered organic?
What is the primary reason for the classification of millions of compounds as organic?
What is the primary reason for the classification of millions of compounds as organic?
Which class of carbon-containing compounds is generally considered inorganic?
Which class of carbon-containing compounds is generally considered inorganic?
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Study Notes
Properties of Nonmetals
- Nonmetals are typically poor conductors of electricity and heat when solid
- Nonmetals are brittle and lack the ability to be molded into different shapes
Characteristics of Nonmetals
- A characteristic of nonmetals is that they tend to gain electrons to form anions
Distribution of Elements
- Nonmetallic elements make up the overwhelming majority of the Earth's crust, atmosphere, oceans, and biosphere
Industries Involving Nonmetals
- Nonmetallic elements are integral to industries such as manufacturing, construction, and agriculture
Nature of Oxides of Nonmetals
- Oxides of nonmetals tend to be acidic
Organic Compounds
- Carbon and hydrogen, along with other elements, are present in organic compounds according to many authors
- The defining characteristic of organic compounds is that they contain carbon-hydrogen bonds according to some authors
- Glucose, a carbon-containing compound, is considered organic
Classification of Organic Compounds
- The primary reason for the classification of millions of compounds as organic is the presence of carbon-hydrogen bonds
- Mineral carbonates and cyanides are generally considered inorganic, despite containing carbon
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