The Discovery Of Radiation And Nuclear Chemistry printable pdf download

The Discovery Of Radiation And Nuclear Chemistry

Mr. Kortemeier

Chpt 7 Lecture notes

Name:________________

Period:____________

Due Date:________________

Chapter 7: The discovery of radiat ion and nuclear chemistry

1. Nuclear chemistry is different than normal chemistry because the changes take place in the

________ of the atom.

2. What particles make up the nucleus of the atom? __________________ and ___________

An isotope of an element has the same _______________ but different number of

________________. This make this variety ________________ or __________________ than

the more common variety of this element.

JJ Thomson discovered the ______________ using a vacuum tube connected to a battery.

These cathode tubes also produce __________________. ____________________ are not

particles, but are like radio waves or light waves but have much shorter wavelengths and so

much higher energy. They can _______________________ through matter.

Within a short time of their discovery, ______________ were used for __________________.

Radioactivity is a ______________________ process.

A French chemist and photographer Henri Becquerel discovered _________________ when he

was trying to _____________________ minerals of _________________________.

Ernest Rutherford named the first 3 types of _______________________. The least penetrating

type is called __________________. It has a ________________ charge and a mass of

____________________. This is the same thing as a ___________________ only without

___________________. The next most penetrating type of radioactivity is the

________________ particle (named after the second letter of Greek alphabet). It is an

________________ being shot out of a nucleus at high speed. Gamma radiation is ___________

_______________ it is super short wave length and highly energetic.

The release of energy and particles from the nucleus is called _________________ .

10.

Many isotopes are not radioactive. They can be perfectly _______________________.

11.

The Discovery Of Radiation And Nuclear Chemistry