Protons and Neutrons They make up most of the mass of the atom
Where can Valence electrons be found?
In the outer shell Also known as a electron cloud
In an atom or isotope, the number of protons is equal to the number of ___?
The number of electrons This changes if an atom is an ion
Ions are?
Positively or negatively charged atoms
An elements atomic number represents?
The number of Protons
Mg. S Mg + S What are three parts of the equation called?
Products (yield) Reactants
List two types of bonds that atoms can make?
Ionic, Covalent
What is the only thing that changes during a chemical reaction?
The order the atoms are arranged
What type of reaction is cooking a pizza?
Chemical Reaction
What is the Law of Conservation of Mass (in a chemical reaction)?
In a chemical reactions, atoms are neither created or destroyed, merely rearranged
What does a catalyst do?
Speeds up reactions
What is created when a chemical change occurs?
A new substance with new chemical properties is created
How many protons does Fluorine have?
9 Protons
What you start a reaction with and what you end a reaction with. What are these two things called?
Product and Reactant
Force =Mass x Acceleration If the Force is 75 N and the acceleration is 2 10 m/sec
Force =Mass x Acceleration 7. 5 kg x 10 m/sec = 75 N
Force =Mass x Acceleration If the mass is 100 kg and the acceleration is 2 5 m/sec find the force in Newtons?
Force =Mass x Acceleration 100 kg x 5 m/sec = 500 N
Daily Double Draw a linear graph on the whiteboard
When 2 different elements combine into a molecule, it is called?
A compound
Isotopes have different number of?
Neutrons
After the catalyst is added, what happens to the rate of reaction? increasing Rate of Reacti on Catalyst decreasing 0 1 2 3 4 5 Time (minutes) 6 7 8 9 10