Types of Radioactive Decay Answers

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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?

1 = beta; 2 = alpha, 3 = gamma

1 = alpha; 2 = beta, 3 = gamma

1 = beta; 2 = gamma, 3 = alpha

1 = gamma; 2 = alpha, 3 = beta

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An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?

It accepted radiation in a chemical reaction.

It donated neutrons to another atom in a chemical reaction.

It emitted an alpha particle in a nuclear reaction.

It released a beta particle in a nuclear reaction.

What is a key difference between chemical and nuclear reactions?

In chemical reactions, new compounds are formed. In nuclear reactions, compounds are destroyed.

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

Chemical reactions involve large changes in energy. Nuclear reactions absorb or release small amounts of energy.

In chemical reactions, only alpha radiation is emitted. In nuclear reactions, alpha, beta, and gamma decay may occur.

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

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

Superscript 18 subscript 9 upper F right arrow superscript 18 subscript 8 upper O plus subscript 0 subscript 1 e.

Superscript 14 subscript 6 upper C right arrow superscript 14 subscript 7 upper N plus superscript 0 subscript negative 1 e.

Superscript 152 subscript 66 upper D y right arrow superscript 152 subscript 66 upper D y plus y.

What is the most penetrating kind of radiation product that can be shielded with aluminum foil?

alpha particles

beta particles

gamma rays

high-energy photons

A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal. How can she find out?

Measure the metal’s temperature.

Check for the presence of alpha, beta, and gamma particles.

Look for the presence of niobium compounds.

Place the niobium in a pressurized container, and see if the lump becomes warmer.

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

some shielding required

no mass

large mass

high penetrating power

What type of particle has no mass or charge?

Alpha

Beta

Gamma

Proton

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

one alpha particle

two beta particles

one alpha and one beta particle

one high-energy photon

Which can have either a positive charge or a negative charge when they are released during radioactive decay?

alpha particles

beta particles

positrons

photons

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Types of Radioactive Decay Answers

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