Chemistry of Life and Water Flashcards
What are the parts of an atom?
Protons, Neutrons, Electrons.
What is the charge of protons?
Positive.
What is the role of neutrons in an atom?
Determine isotope, no charge.
Where are electrons located in an atom?
Surrounding the nucleus.
What do valence electrons determine?
How that atom will behave.
When is an atom most stable?
When the outermost energy level is full of electrons.
What are the types of chemical bonds?
Covalent, Ionic, and Hydrogen.
How are covalent bonds formed?
When electrons are shared between atoms.
How are ionic bonds formed?
Between oppositely charged ions.
What forms hydrogen bonds?
Attraction between oppositely charged polar molecules.
Why do bonds form?
To achieve stability.
What elements make up water?
Hydrogen and Oxygen.
How are the elements in water held together?
By polar covalent bonds.
What type of bond results from oxygen being electronegative?
Polar covalent.
What unique features of water result from polar covalent bonds?
Hydrogen bonds can be formed between water molecules.
