Podcast
Questions and Answers
Which of the following is a common property of nonmetals?
Which of the following is a common property of nonmetals?
- Pliable and shiny in solid form
- Low density and high electronegativity (correct)
- High density and low electronegativity
- Good conductors of heat and electricity
What tends to be the nature of oxides of nonmetals?
What tends to be the nature of oxides of nonmetals?
- Alkaline
- Basic
- Neutral
- Acidic (correct)
Which two elements make up about 98% of the observable ordinary matter in the universe by mass?
Which two elements make up about 98% of the observable ordinary matter in the universe by mass?
- Hydrogen and nitrogen
- Carbon and oxygen
- Hydrogen and helium (correct)
- Nitrogen and oxygen
What is a common characteristic of nonmetals when they are in solid form?
What is a common characteristic of nonmetals when they are in solid form?
What is the most common property of metals in contrast to nonmetals?
What is the most common property of metals in contrast to nonmetals?
What is the primary condition for total internal reflection to occur?
What is the primary condition for total internal reflection to occur?
In which scenario does total internal reflection occur?
In which scenario does total internal reflection occur?
In addition to light and microwaves, with what other types of waves does total internal reflection occur?
In addition to light and microwaves, with what other types of waves does total internal reflection occur?
How is the reflection described when waves capable of forming a narrow beam are involved in total internal reflection?
How is the reflection described when waves capable of forming a narrow beam are involved in total internal reflection?
In a medium whose properties are independent of direction, what tends to be the nature of the reflection?
In a medium whose properties are independent of direction, what tends to be the nature of the reflection?
