When is an atom unlikely to react?
When its outer shell is full
What is the most stable group of elements?
Noble gases
What do chemical properties of an element depend on?
Valence electrons
What does the element symbol represent in the Lewis dot diagram?
Uncles and his inner core electrons
How many electrons does helium have?
2
What is the one noble gas that is the exception to having eight electrons?
Helium
What’s an ion?
Atom(s) with a pos/neg net electric charge
What’s an anion?
Ion with a negative charge
What’s an example of an anion?
Chlorine
What suffix is added when naming anions?
Ide
What’s a cation?
An ion with a positive charge
What’s an example of a cation?
Sodium
How do you name a cation?
Use the normal element name
Which ions lend valence electrons?
Ions with less than four VE
Which ions borrow valence electrons?
Ions with more than four valence electrons
What’s a chemical bond?
A force that hold atoms or ions together as a unit
What’s an ionic bond?
The transferring of electrons between a metal and nonmetal
What’s a lattice?
A rigid framework that keep an ion in a fixed position
What are crystals?
Solids whose particles are arranged in lattice structure
What’s covalent bonding?
The sharing of valence electrons between nonmetals
What’s electronegativity?
The tendency of atoms to attract binding electrons to themselves
How does more electronegativity impact attraction?
Increases attraction
For covalent bonds, electronegativity is usually under..
1.7
How do you find electronegativity?
Find the difference of the average atomic mass of the elements bonded
