Free Powerpoint Presentations

Radioactive Decay, Nuclear Reactions
Page
2

DOWNLOAD

PREVIEW

WATCH ALL SLIDES

Alpha Decay

unstable atom

more stable atom

alpha particle

Slide 13

Alpha Decay

Alpha Decay

Slide 14

Alpha Decay

Alpha Decay

Slide 15

Alpha Decay

Alpha Decay

Slide 16

Alpha Decay

Alpha Decay

Slide 17

Alpha Decay

Alpha Decay

Slide 18

Alpha Decay

Alpha Decay

Slide 19

Beta Decay

Beta Decay

A beta particle is a fast moving electron which is emitted from the nucleus of an atom undergoing radioactive decay.

Beta decay occurs when a neutron changes into a proton and an electron.

Slide 20

Beta Decay

Beta Decay

As a result of beta decay, the nucleus has one less neutron, but one extra proton.

The atomic number, Z, increases by 1 and the mass number, A, stays the same.

Slide 21

Beta Decay

Beta Decay

Slide 22

Beta Decay

Beta Decay

Slide 23

Beta Decay

Beta Decay

Slide 24

Beta Decay

Beta Decay

Slide 25

Beta Decay

Beta Decay

Slide 26

Beta Decay

Beta Decay

Slide 27

Gamma Decay

Gamma Decay

Gamma rays are not charged particles like a and b particles.

Gamma rays are electromagnetic radiation with high frequency.

When atoms decay by emitting a or b particles to form a new atom, the nuclei of the new atom formed may still have too much energy to be completely stable.

This excess energy is emitted as gamma rays (gamma ray photons have energies of ~ 1 x 10-12 J).

Go to page:
 1  2 

Contents

Last added presentations

2010-2024 powerpoint presentations