8G Science HW#17 Chapter 4.3 and 4.4

A hard, crystalline solid made by heating clay and other mineral materials to high temperatures is called _____.

• Ceramic

• Glass

• Optical Fiber

A clear, solid material with no crystal structure, created by heating sand to a very high temperature is called _____.

• Ceramic

• Glass

• Optical Fiber

A threadlike piece of glass (or plastic) that can be used for transmitting messages in the form of light is called _____.

• Ceramic

• Glass

• Optical Fiber

A reaction involving the particles in the nucleus of an atom that can change one element into another element is called ________.

• Nuclear reaction

• Isotope

• Nuclear radiation

• Radioactive decay

An atom with the same number of protons and different number of neutrons from other atoms of the same elements is called ________.

• Nuclear radiation

• Isotope

• Mass number

• Radioactive decay

The sum of the protons and neutrons in the nucleus of an atom is called ________.

• Nuclear reaction

• Isotope

• Mass number

• Radioactive decay

The process in which the atomic nuclei of unstable isotopes release fast-moving particles and energy is called ________.

• Nuclear radiation

• Isotope

• Mass number

• Radioactive decay

Particles and energy released from a radioactive nucleus is called ________.

• Nuclear radiation

• Isotope

• Mass number

• Radioactive decay

A type of nuclear radiation consisting of two protons and two neutrons is called _______.

• Nuclear radiation

• Alpha particle

• Beta particle

• Gamma radiation

An electron that is given off as nuclear radiation is called _______.

• Nuclear radiation

• Alpha particle

• Beta particle

• Gamma radiation