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Questions and Answers
Which of the following statements best describes an atom?
Which of the following statements best describes an atom?
- The basic building block of materials. (correct)
- A substance made up of multiple elements.
- A complex structure composed of various molecules.
- The smallest indivisible particle of a compound.
An element is defined as a substance that can be broken down into simpler substances by chemical means.
An element is defined as a substance that can be broken down into simpler substances by chemical means.
False (B)
What is the black solid that remains after burning wood, and why is it considered an element?
What is the black solid that remains after burning wood, and why is it considered an element?
Carbon, because it is made up only of carbon atoms
A _ is formed when two or more atoms join together.
A _ is formed when two or more atoms join together.
Match the element with its corresponding symbol:
Match the element with its corresponding symbol:
Why did early scientists call atoms 'indivisible'?
Why did early scientists call atoms 'indivisible'?
All molecules are elements.
All molecules are elements.
What is the significance of an element's symbol?
What is the significance of an element's symbol?
The element iron has the symbol Fe, which comes from its _ name.
The element iron has the symbol Fe, which comes from its _ name.
Which of the following is an example of an element?
Which of the following is an example of an element?
The symbol for hydrogen is Hy.
The symbol for hydrogen is Hy.
Explain the relationship between atoms and molecules.
Explain the relationship between atoms and molecules.
When wood is burned, the black solid that remains is the element _.
When wood is burned, the black solid that remains is the element _.
What is the original Greek meaning of the word 'atom'?
What is the original Greek meaning of the word 'atom'?
Each element has a unique symbol, but some elements may share the same symbol.
Each element has a unique symbol, but some elements may share the same symbol.
In what way is carbon different from wood?
In what way is carbon different from wood?
In the periodic table, H is the symbol for _, while Fe is the symbol for _.
In the periodic table, H is the symbol for _, while Fe is the symbol for _.
If a substance is made up of only one type of atom, then it is classified as which of the following?
If a substance is made up of only one type of atom, then it is classified as which of the following?
Match the element symbol to the origin of its name:
Match the element symbol to the origin of its name:
Molecules can only be formed by combining different types of atoms.
Molecules can only be formed by combining different types of atoms.
Flashcards
What are atoms?
What are atoms?
Basic building blocks of materials. The word comes from the Greek word for indivisible.
What is an element?
What is an element?
A substance made up of only one type of atom that cannot be broken down into anything simpler.
What is carbon?
What is carbon?
The black solid left after burning wood, consisting only of carbon atoms.
What is a chemical symbol?
What is a chemical symbol?
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What is a molecule?
What is a molecule?
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Study Notes
- Atoms are the basic building blocks of materials
- The word "atom" originates from Greece, describing something indivisible
- Early scientists envisioned atoms as solid, indivisible spheres
- An element consists of only one type of atom
- Carbon is an element, as it is made up of only carbon atoms and cannot be broken down further
- Each element has a unique symbol
- H symbolizes hydrogen
- Fe symbolizes iron, derived from the Latin name "ferrum"
- A molecule is formed when two or more atoms join together
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