Radiometric dating worksheet

Each atom has a positively charged nucleus surrounded by negatively charged electrons.

The electric force between the nucleus and electrons holds the atom together.

Radioactive isotopes are unstable and undergo spontaneous nuclear reactions, emitting particles and/or wavelike radiation.

Technology also provides tools for investigations, inquiry, and analysis.Matter is made of minute particles called atoms, and atoms are composed of even smaller components.These components have measurable properties, such as mass and electrical charge.However, to read any clock accurately we must know where the clock was set at the beginning.Most people think that radioactive dating has proven the earth is billions of years old.

The atom's nucleus is composed of protons and neutrons, which are much more massive than electrons.