Nuclear Chemistry Review

Front

What is beta decay?

Back

Beta decay is a type of radioactive decay in which an unstable nucleus transforms into a more stable one by emitting a beta particle (an electron or a positron).

Front

What is the half-life of a radioactive substance?

Back

The half-life is the time required for half of the radioactive atoms in a sample to decay into a more stable form.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What is fission?

Back

Fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, along with the release of energy.

Front

What is fusion?

Back

Fusion is a nuclear reaction in which two light atomic nuclei combine to form a heavier nucleus, releasing energy in the process.

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What is radioactive decay?

Back

Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How do you calculate the remaining percentage of a radioactive sample after a certain number of half-lives?

Back

To calculate the remaining percentage, use the formula: Remaining Percentage = (1/2)^(number of half-lives) x 100%.

Front

What is the significance of iodine-131 in medicine?

Back

Iodine-131 is used in medical treatments, particularly for thyroid conditions, due to its radioactive properties.