LESSON 1: NUCLEAR REACTIONS AND ORIGINS OF ELEMENTS

Includes diamond, water, steam, and nebula.

Ecosystem Components

Different forms of matter.

States of Matter

Processes involving changes in the nucleus of an atom.

Nuclear Reactions

The process where nuclei combine to form a heavier nucleus.

Fusion

The splitting of a nucleus into smaller parts.

Fission

The emission of particles such as electrons, protons, neutrons, and positrons.

Radioactivity

Initially claimed all elements formed in the Big Bang but later found incorrect, proposed by Alpher, Bethe, and Gamow in 1948.

Big Bang Nucleosynthesis

An explosion of a star that creates new elements.

Supernova

A dense remnant of a massive star.

Neutron Star

A rotating neutron star that emits radiation.

Pulsar

A neutron star with a strong magnetic field.

Magnetar

The core left after a star exhausts its nuclear fuel.

White Dwarf

Theoretical cooled remnant of a white dwarf.

Black Dwarf

A core collapse into a singularity with extreme gravity.

Black Hole