What does the atomic number of an atom represent?
What does the mass number of an atom represent?
Match the descriptions to the sub atomic particles. Some may be used more than once.
Found in Nucleus
Found outside nucleus
Negatively charged -1
Positively charged +1
No charge
Relative Mass of 1
Negligible mass
Proton
Neutron
Electron
Give a definition of isotope
Describe how the electron configuration of an atom changes when it becomes an ion.
Given that Silver contains 52% of Ag-107 with a mass of 107 amu and 48% of Ag-109 with a mass of 109 amu, calculate the relative atomic mass.
The naturally occurring copper consists of Cu-63 (69% abundance and mass of 63) and Cu-65 (31% abundance and mass of 65 amu). Calculate the relative atomic mass.
When forming ions metals normally form...
When forming ions non-metals normally form...
What is necessary for a collision to lead to a chemical reaction based on the collision theory?
In an experiment studying reaction rates, temperature is increased. What is the role of temperature in this experiment?
In a study about the effect of temperature on the solubility of sodium chloride, what role does the amount of dissolved sodium chloride play?
Draw the electron configuration of an nitrogen ion
Draw the electron configuration of a lithium atom
Draw the electron configuration of an aluminium ion
Describe the meaning of activation energy
What happens when particles collide with less than activation energy?
The charge of an aluminium ion
The charge of an sulphur ion
The charge of a hydrogen ion
The charge of a sodium ion
The charge of a calcium ion
The charge of a florine ion
The charge of a nitrogen ion
What is the charge of an ion with 10 protons and 7 electrons?
What is the atomic mass of an atom with 12 protons, 13 neutrons and 11 electrons?
What happens to the number of atoms in a chemical reaction?
Which factor increases the rate of a chemical reaction?
Explain why increasing surface area of a solid reactant increases the rate of a reaction
Explain why atoms have no overall charge
Explain the effect of increasing temperature on the rate of a reaction
Which of the following will not increase the rate of reaction?
1. A reaction produces 120g of water in 15 minutes. What is the rate of reaction?
2. If 200g of hydrogen reacts in 60 minutes, what is the average rate of reaction?
Describe the effect of increasing the concentration of a solution on rate of reaction