CH Unit 03 Atom/Nuclear Chem Review

Front

What is gamma radiation?

Back

High energy radiation that can penetrate skin and thin foil.

Front

What are electrons in the lowest possible energy level called?

Back

Ground state.

Front

What is the product of beta decay of xenon-140?

Back

The product is cesium-140.

Front

How are atomic electron orbitals described in the electron cloud model?

Back

They are spherical or multiple-lobed three-dimensional patterns.

Front

What best describes atoms?

Back

Atoms are the smallest units of an element.

Front

What is beta radiation?

Back

A type of radiation that involves the emission of beta particles (electrons or positrons) from a nucleus.

Front

What is alpha radiation?

Back

A type of radiation that consists of alpha particles, which are made up of 2 protons and 2 neutrons.

Front

What is a chain reaction in nuclear chemistry?

Back

A process where the products of a reaction cause additional reactions to occur.

Front

What is the atomic number?

Back

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

Front

What is an excited state of an electron?

Back

When an electron has absorbed energy and moved to a higher energy level.