Alpha and Beta Decay

¹³⁷₅₅Cs —› ____ + ⁰_-1e

• ¹⁷⁸₇₂Hf

• ¹³⁷₅₃I

• ¹⁴¹₅₄Xe

• ¹³⁷₅₆Ba

Tags

NGSS.HS-PS1-8

If some Protactinium (Pa) decays by alpha it would become...

• Actinium (Ac)

• Thorium( (Th)

• Uranium (U)

• Neptunium (Np)

• Plutonium (Pu)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-8

Describe the structure of an alpha particle.

• a fast-moving electron

• 2 protons and 2 neutrons

• a slow-moving neutron

• a hydrogen nucleus

What is the relative charge of an alpha particle?

• -1

• 0

• 1

• 2

Select all of the properties of alpha particles.

• Highly ionisation

• Highly penetrating

• Weakly ionising

• Weakly penetrating

The particle emitted in beta-minus decay is a ____________________.

• a proton

• an electron

• a neutron

Tags

NGSS.HS-PS1-8

Which particle is emitted in beta-plus decay?

• electron

• neutron

• positron

• proton

Tags

NGSS.HS-PS1-8

In beta-plus decay...

• the mass number decreases by 1

• the mass number increases by 1

• the atomic number decreases by 1

• the atomic number increases by 1

Tags

NGSS.HS-PS1-8

An alpha particle can be stopped by _________________.

• a sheet of paper

• the air

• only gold

The mass number of Neptunium (Np) is _____.

• 93

• 237

• 95

• 941

Tags

NGSS.HS-PS1-8