Chapter 2 Section 9: Chem Talk

Open Ended

What do you think makes up the 

nucleus of the atom?

Match

Match the following

• a neutral particle located in the nucleus of an atom.

• • either a proton or neutron in the nucleus of an atom. 

• the three kinds of particles that make up atoms: protons, neutrons, and electrons.

• • atoms of the same element that have different masses due to a different number of neutrons.

• • the force of attraction between two bodies due to their masses.

neutron:

• nucleon:

subatomic particles:

• isotope:

• gravity:

• neutron:

• • nucleon:

• subatomic particles:

• • isotope:

• • gravity:

Match

Match the following

• a force that is associated with nuclear decay and is one of the four fundamental forces.

• an atom that has an unstable nucleus and will emit alpha, positron, or beta particles in order to achieve a more stable nucleus.

• nuclei of lighter atoms combining to form nuclei with greater mass and releasing a large amount of energy.

weak force:

radioactive:

fusion:

• weak force:

• radioactive:

• fusion:

Match

Match the following

• the process of breaking apart nuclei into smaller nuclei with the release of a large amount of energy.

• a process, such as fission, fusion, or radioactive decay, in which the structure of an atomic nucleus is altered through release of energy or mass or by being broken apart.

• the length of time it takes for half of any quantity of a given radioactive isotope to decay.

fission:

nuclear reaction:

half-life:

• fission:

• nuclear reaction:

• half-life: