Final Practice Flashcard #1 (Units #1-3)

Front

What is fission?

Back

Fission is the splitting of a nucleus into smaller nuclei, releasing energy.

Front

How many protons does an oxygen (O) atom have?

Back

An oxygen (O) atom has 8 protons.

Front

When reading the volume in a graduated cylinder, where should you look?

Back

You should look at the bottom of the meniscus.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the correct number of subatomic particles in a phosphorus (P) atom with a mass of 31?

Back

Phosphorus (P) has 15 protons, 16 neutrons, and 15 electrons.

Front

Define a neutron.

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

Define an electron.

Back

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, determining 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 the difference between fusion and fission?

Back

Fusion is the process of combining two nuclei to form a heavier nucleus, while fission is the splitting of a nucleus into smaller nuclei.