Radioactive Decay Types and Balancing Equations

The video tutorial covers the identification and balancing of radioactive decay equations. It begins with an introduction to different types of radioactive decay, including alpha, beta, and gamma decay. The instructor provides examples of each decay type, explaining how to balance equations and identify resulting elements. The tutorial emphasizes the importance of maintaining numerical balance on both sides of the equation and uses the periodic table to identify elements based on atomic numbers. The session concludes with a series of examples to reinforce the concepts learned.

What type of decay involves the emission of a helium nucleus?

• Neutron emission

• Gamma decay

• Alpha decay

• Beta decay

Which type of decay results in an increase in the proton number?

• Alpha decay

• Beta decay

• Gamma decay

• Neutron emission

What remains unchanged during gamma decay?

• Mass and proton number

• Both mass and neutron number

• Only mass

• Only proton number

If an element undergoes beta decay and its proton number increases by one, what happens to its mass?

• Doubles

• Remains the same

• Decreases by one

• Increases by one

Which element is produced when cobalt undergoes beta decay?

• Zinc

• Copper

• Nickel

• Iron

What is the atomic number of chlorine?

• 18

• 19

• 17

• 16

What type of decay does not change the element but releases energy?

• Alpha decay

• Beta decay

• Gamma decay

• Neutron emission

Which element is formed when polonium undergoes alpha decay?

• Bismuth

• Lead

• Thallium

• Mercury

What is the new mass of polonium after it undergoes alpha decay?

• 206

• 210

• 204

• 208

Which element is formed when sodium undergoes beta decay?

• Phosphorus

• Silicon

• Aluminum

• Magnesium