Chemistry Part 2 Gr.9 Flashcards
How do you find protons?
Protons = Atomic Number
How do you find electrons?
Electrons = Atomic Number (with charge)
How do you find neutrons?
Atomic Mass - Atomic Number
What is an Ion?
An Ion is an atom with an electrical charge. Example: Au+1
Group 1 is made up of
Alkali metals (Except hydrogen)
Group 2 is made up of
Alkaline earth metals
Group 17 is made up of
Halogens
Group 18 is made up of
Noble gases
What is in the bottom staircase for metals?
Post-transition metals or other metals
What could be in the middle of the staircase for metals?
Metalloids
What is the top staircase for metals
Non-metals or reactive nonmetals
How do you draw a Lewis Dot Diagram?
The symbol for the element in the middle, then its valence electrons only surrounding it in a cross shape.
Ionic bonds are formed between _________
Metals and Non-metals
Covalent bonds are formed between __________
Non-metals
Do you add the ion’s charge to Ionic or Covalent Bonds?
Ionic Bonds.
Elements sharing electrons =
Covalent Bonding.
Elements losing/gaining electrons to become stable =
Ionic Bonding.
What are the steps for drawing ionic bonds?
- Write the symbols for each element.
- Draw Lewis Dot of each element.
- Draw arrows to show the transfer of electrons.
- Write the charges of the ions.
- Write the resulting chemical formula.
What are the steps for drawing covalent bonds?
- Write the symbol of each element.
- Draw Lewis Dot of each element.
- Draw circles to show the sharing of electrons.
- Write the chemical formula.
