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Questions and Answers
What is a diatomic molecule?
What is a diatomic molecule?
- A molecule that does not exist
- A molecule with one atom
- A molecule with two atoms linked together (correct)
- A molecule with three atoms
List the seven diatomic elements.
List the seven diatomic elements.
H, O, Br, F, I, N, Cl
What is the symbol for nitrogen in its diatomic form?
What is the symbol for nitrogen in its diatomic form?
Nâ‚‚
What is the symbol for oxygen in its diatomic form?
What is the symbol for oxygen in its diatomic form?
What is the symbol for fluorine in its diatomic form?
What is the symbol for fluorine in its diatomic form?
What is the symbol for chlorine in its diatomic form?
What is the symbol for chlorine in its diatomic form?
What is the symbol for bromine in its diatomic form?
What is the symbol for bromine in its diatomic form?
What is the symbol for iodine in its diatomic form?
What is the symbol for iodine in its diatomic form?
What is the symbol for hydrogen in its diatomic form?
What is the symbol for hydrogen in its diatomic form?
The subscript of diatomic elements when they are alone is ___ (e.g., Hâ‚‚).
The subscript of diatomic elements when they are alone is ___ (e.g., Hâ‚‚).
When diatomic elements are part of a compound, the subscript is ____ (e.g., HCl).
When diatomic elements are part of a compound, the subscript is ____ (e.g., HCl).
What happens to the subscript of diatomic elements when they need more atoms to create a neutral compound?
What happens to the subscript of diatomic elements when they need more atoms to create a neutral compound?
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Study Notes
Diatomic Molecules Overview
- Diatomic molecules consist of two atoms bonded together.
- There are 7 diatomic elements on the periodic table.
List of Diatomic Elements
- Diatomic elements are represented by the acronym "HOBrFINCl":
- Hydrogen (H)
- Oxygen (O)
- Bromine (Br)
- Fluorine (F)
- Iodine (I)
- Nitrogen (N)
- Clorine (Cl)
Naming Convention
- The mnemonic "I Never Bring Classwork Home On Fridays" helps recall the names of the diatomic elements:
- Iodine
- Nitrogen
- Bromine
- Chlorine
- Hydrogen
- Oxygen
- Fluorine
Subscripts for Diatomic Elements
- When an element exists independently as a diatomic molecule, a subscript of 2 is used (e.g., Hâ‚‚).
- In a compound, the diatomic element does not typically show the subscript (e.g., HCl is hydrogen chloride).
- Exception: If more atoms are required for neutrality in a compound, subscripts must reflect this (e.g., Hâ‚„C for hydrogen with carbon).
Individual Diatomic Elements
- Nitrogen: Exists as Nâ‚‚.
- Oxygen: Exists as Oâ‚‚.
- Fluorine: Exists as Fâ‚‚.
- Chlorine: Exists as Clâ‚‚.
- Bromine: Exists as Brâ‚‚.
- Iodine: Exists as Iâ‚‚.
- Hydrogen: Exists as Hâ‚‚.
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