Unit 1 Flashcards
What formula can be used to express the rate of a reaction?
Reaction rate = Change in quantity of reactant or product over change in time
What is meant by reaction rate?
The Reaction rate is a term used to describe the speed at which a chemical reaction occurs
What four variables can alter the rate of a reaction?
Catalyst
Temperature
Concentration
Particle Size
What is the position, relative atomic mass and Charge of a proton particle?
Proton \_\_\_\_\_\_\_ Nucleus 1 \+1
What is the position, relative atomic mass and charge of a Neutron particle?
Neutron \_\_\_\_\_\_\_\_ Nucleus 1 0
What is the position, relative atomic mass and charge of an electron particle?
Electron \_\_\_\_\_\_\_\_ Outside the nucleus Almost 0 -1
What sub atomic particle is positively charged?
A proton
What sub atomic particle is neutral? (No charge)
Neutron
What sub atomic particle is negatively charged?
An electron
When using nuclide notation, how would you work out the number of protons?
Look at the atomic number.
When using nuclide notation, how would you work out the number of neutrons?
Mass number-atomic number
= neutrons
When using nuclide notation, how would you work out the number of electrons?
Look at the atomic number.
How much electrons can the first outer shell hold in an atom?
Up to 2
How much electrons can the second and third shells of an atom hold, respectively.
8
Are metal ions positively charged or negatively charged?
Positively charged.
