Module 2 Flashcards
Proton
Location:
Charge:
Mass:
Located in the nucleus:
+1 charge
1 mass
Neutron
Location:
Charge:
Mass:
Located in the nucleus
0 charge
1 mass
Electron
Location:
Charge:
Mass
Located outside the nucleus
-1 charge
Almost 0 mass
Atomic number =
Number of protons
Number of protons =
Number of electrons
Mass number =
Number of protons and neutrons
Number of neutrons =
Mass number - atomic number
What’s an isotope
An isotope is an atom with the same protons but different neutrons
What is in a nuclide notation
Atomic number
Mass number
Symbol
What is at the top of a nuclide notation
Mass number
What is at the bottom of a nuclide notation
Atomic number
What is in the middle of a nuclide notation
Symbol
How many electrons are allowed to be in the lines
First: 2
Rest: 8
How can you tell if a substance is ionic
It can be metal or non-metal
High mpt
Conducts electricity
Soluble in water
How can you tell if a substance is covalent
Only non-metal
Low mpt
Does nto usually dissolve
Doesn’t conduct electricity
What group has a full outer energy level making them stable
Noble gases
How do other atoms get a stable electron arrangement
They must join to form a compound
Molecule
Two or more non-metals form a covalent compound
A covalent bond
The attraction of the positive nuclei for a shared pair of element
Monatomic
Type of bonding in noble gases
A diatonic element
2 atom bonded together through covalent bonding