CHEM 1020 EXAM 2 – CLEMSON | STUDY GUIDE |
2026
collision theory - Answers - 1. reacting molecules must collide with one another
2. reacting molecules must collide with sufficient energy to break bonds
3. molecules must collide in an orientation that leads to reaction
rate-determining step - Answers - the slowest step in a reaction mechanism
nuclear reaction consequences - Answers - - changes in atomic nucleus
- identity of an atom may change
True - Answers - (T/F) mass and energy can be interconverted
Z - Answers - atomic number symbol
calculate mass number - Answers - protons + neutrons
calculate atomic number - Answers - number of protons
isotopes - Answers - different atoms with the same atomic number but different mass
numbers
Nuclide - Answers - a general term for a specific isotope of an element
nucleons - Answers - protons and neutrons
alpha decay - Answers - - emission of alpha particles
- helium nucleus: two protons, two electrons
- positively charges
beta decay - Answers - radioactive decay in which an electron is emitted
gamma decay - Answers - - the release of gamma rays from a nucleus
- does not result in changes of atomic number or atomic mass
positron decay - Answers - - positron emission
- antimatter equivalent of electrons
- mass number stays the same
electron capture - Answers - nucleus captures a low energy electron from a core shell
resulting in a conversion of a proton to a neutron
Alpha characteristics - Answers - - highest ionizing power: carry highest charge
2026
collision theory - Answers - 1. reacting molecules must collide with one another
2. reacting molecules must collide with sufficient energy to break bonds
3. molecules must collide in an orientation that leads to reaction
rate-determining step - Answers - the slowest step in a reaction mechanism
nuclear reaction consequences - Answers - - changes in atomic nucleus
- identity of an atom may change
True - Answers - (T/F) mass and energy can be interconverted
Z - Answers - atomic number symbol
calculate mass number - Answers - protons + neutrons
calculate atomic number - Answers - number of protons
isotopes - Answers - different atoms with the same atomic number but different mass
numbers
Nuclide - Answers - a general term for a specific isotope of an element
nucleons - Answers - protons and neutrons
alpha decay - Answers - - emission of alpha particles
- helium nucleus: two protons, two electrons
- positively charges
beta decay - Answers - radioactive decay in which an electron is emitted
gamma decay - Answers - - the release of gamma rays from a nucleus
- does not result in changes of atomic number or atomic mass
positron decay - Answers - - positron emission
- antimatter equivalent of electrons
- mass number stays the same
electron capture - Answers - nucleus captures a low energy electron from a core shell
resulting in a conversion of a proton to a neutron
Alpha characteristics - Answers - - highest ionizing power: carry highest charge
