Types of Radioactive Decay

Question 1

Consider the table below that summarizes the types of materials that can block the 3 different types of radiation.Material123LeadStoppedStoppedStoppedClothNot stoppedStoppedStoppedAluminum foilNot stoppedStoppedStoppedWoodNot stoppedStoppedStoppedPaperNot stopped StoppedNot stoppedThick concreteStoppedStoppedStoppedBased on the table, at which numbered spot in the table does each type of radiation belong?

Revolt · Accepted Answer

1 = gamma; 2 = alpha, 3 = beta

Question 2

Two protons and two neutrons are released as a result of this reaction. Rn Po + ?Which particle is released?

Revolt · Accepted Answer

one alpha particle

Question 3

While a certain isotope decays, it emits photons. What kind of decay is happening?

Revolt · Accepted Answer

gamma decay

Question 4

How can a scientist assess whether a pure niobium (Nb) sample is responsible for contaminating the lab with radioactivity?

Revolt · Accepted Answer

Test the niobium sample to see whether it now contains other elements.

Question 5

In alpha decay, alpha particles are ejected from the nucleus. Which equation represents alpha decay?

Revolt · Accepted Answer

Superscript 241 subscript 95 upper A m right arrow superscript 237 subscript 93 upper N p plus superscript 4 subscript 2 upper H e.

Question 6

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. What other characteristic does the radiation have?

Revolt · Accepted Answer

some shielding required

Question 7

What type of particle has no mass or charge?

Revolt · Accepted Answer

Gamma

Question 8

What is a key difference between chemical and nuclear reactions?

Revolt · Accepted Answer

Chemical reactions involve electron rearrangements. Nuclear reactions involve changes to the nucleus.

Question 9

An isotope undergoes radioactive decay. The new isotope that forms has an atomic number that is 2 less than the original isotope’s. Which kind of decay has occurred, and how do you know?

Revolt · Accepted Answer

alpha decay because alpha particles have two protons and two neutrons

Question 10

What can form as a result of a chemical reaction?

Revolt · Accepted Answer

compounds

Types of Radioactive Decay Answers

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