Radioactive Decay

1. What is all matter made up of?

Dust

Sun rays

Atoms

Metal

Submit

3. What is emitted during alpha decay?

An electron from the electron cloud

Two protons and two neutrons from the nucleus

An electron from the nucleus

Two protons and two neutrons from the electron cloud

4. An isotope has the same number of _, but different numbers of _____.

Electrons, protons

Protons, electrons

Protons, neutrons

Neutrons, protons

5. A radioactive isotope has a half-life of 2 years. How much of a 400g sample remains after 4 years?

400g

300g

200g

100g

0g

6. What is emitted during beta decay?

An electron from the electron cloud

Two protons and two neutrons from the nucleus

An electron from the nucleus

Two protons and two neutrons from the electron cloud

7. In beta decay a splits to make a and a _ which is emitted from the nucleus.

Proton, neutron, electron

Electron, proton, neutron

Neutron, proton, electron

Radioactive Decay

1. What is all matter made up of?

2.

What first name or nickname would you like us to use?

2. This is the amount of time it takes for half of a radioactive material to decay.

3. What is emitted during alpha decay?

4. An isotope has the same number of _, but different numbers of _____.

5. A radioactive isotope has a half-life of 2 years. How much of a 400g sample remains after 4 years?

6. What is emitted during beta decay?

7. In beta decay a splits to make a and a _ which is emitted from the nucleus.

Radioactive Decay

1. What is all matter made up of?

2.

What first name or nickname would you like us to use?

2. This is the amount of time it takes for half of a radioactive material to decay.

3. What is emitted during alpha decay?

4. An isotope has the same number of _________, but different numbers of _____________.

5. A radioactive isotope has a half-life of 2 years. How much of a 400g sample remains after 4 years?

6. What is emitted during beta decay?

7. In beta decay a ________ splits to make a ________ and a _________ which is emitted from the nucleus.

4. An isotope has the same number of _, but different numbers of _____.

7. In beta decay a splits to make a and a _ which is emitted from the nucleus.