Chemistry Fall Final 2024 H

Front

What type of decay involves the emission of an electron?

Back

Beta decay is a type of radioactive decay in which an electron is emitted from an atomic nucleus.

Front

What is the starting material for nuclear fission?

Back

Fission starts with 1 large isotope, such as Uranium.

Front

How do you calculate the number of neutrons in an isotope?

Back

The number of neutrons can be calculated by subtracting the atomic number (number of protons) from the mass number of the isotope.

Front

What is the electron configuration of sodium (Na)?

Back

Front

In which direction does heat flow?

Back

Heat flows from hot to cold.

Front

What is alpha decay?

Back

Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, consisting of 2 protons and 2 neutrons.

Front

What is gamma decay?

Back

Gamma decay is a type of radioactive decay that involves the emission of gamma rays, which are high-energy electromagnetic waves.

Front

What is the mass number of an isotope?

Back

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

Front

What is the atomic number of an element?

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 principle of conservation of mass in a chemical reaction?

Back

The principle of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.