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Questions and Answers
What is a diatomic molecule?
What is a diatomic molecule?
There are 7 elements on the periodic table that exist as a molecule with 2 atoms linked together.
Which of the following are diatomic elements? (Select all that apply)
Which of the following are diatomic elements? (Select all that apply)
- Iodine (correct)
- Carbon
- Argon
- Fluorine (correct)
Which of the following phrases helps remember the 7 diatomic elements?
Which of the following phrases helps remember the 7 diatomic elements?
- I Never Bring Classwork Home On Fridays (correct)
- Seven Wonders of the World
- Never Give Up
- Every Good Boy Deserves Fruit
The diatomic element represented by the symbol O is called _____.
The diatomic element represented by the symbol O is called _____.
What is the subscript of diatomic elements when they are by themselves?
What is the subscript of diatomic elements when they are by themselves?
What is the representation of nitrogen as a diatomic element?
What is the representation of nitrogen as a diatomic element?
What is the representation of oxygen as a diatomic element?
What is the representation of oxygen as a diatomic element?
What is the representation of fluorine as a diatomic element?
What is the representation of fluorine as a diatomic element?
What is the representation of chlorine as a diatomic element?
What is the representation of chlorine as a diatomic element?
What is the representation of bromine as a diatomic element?
What is the representation of bromine as a diatomic element?
What is the representation of iodine as a diatomic element?
What is the representation of iodine as a diatomic element?
What is the representation of hydrogen as a diatomic element?
What is the representation of hydrogen as a diatomic element?
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Study Notes
Diatomic Molecules
- Diatomic molecules consist of two atoms bonded together.
- Only seven elements in the periodic table naturally exist as diatomic molecules.
List of Diatomic Elements
- Diatomic elements symbolized as HOBrFINCl (pronounced hober-finkle):
- H (Hydrogen)
- O (Oxygen)
- Br (Bromine)
- F (Fluorine)
- I (Iodine)
- N (Nitrogen)
- Cl (Chlorine)
- Mnemonic to remember names: "I Never Bring Classwork Home On Fridays"
Subscripts in Diatomic Elements
- Diatomic elements have a subscript of 2 when they exist alone (e.g., Hâ‚‚ for hydrogen).
- In compounds, no subscript is used for diatomic elements (e.g., HCl for hydrochloric acid).
- Exception: sometimes more atoms are required for a neutral compound, such as Hâ‚„C, where hydrogen needs four atoms to balance carbon's +4 charge.
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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