Regents Chemistry Nuclear Chemistry

What fuel does the US typically use in fission reactors?

• Hydrogen
• Carbon
• Uranium
• Plutonium

Tags

NGSS.HS-PS1-8

What is another name for an alpha particle?

• electron
• x-ray
• hydrogen nucleus
• helium nucleus

Tags

NGSS.HS-PS1-8

What would two different isotopes of an atom have in common?

• Number of neutrons 
• Number of protons
• Atomic weight 
• Atomic mass

Tags

NGSS.HS-PS1-7

Radioisotopes can be used as tracers to study chemical reactions and molecular structures.

• TRUE
• FALSE

Radioisotopes can be used to diagnose some diseases.

• TRUE
• FALSE

Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?

• Carbon-14 is NOT present in more recent fossils
• Carbon-14 increases at a constant rate over time
• Carbon-14 decreases at a constant rate over time
• Carbon-14 can only be foun in fossils of a certain period

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation particle is being emitted in this equation?

• Alpha

• beta

• gamma

• none

Tags

NGSS.HS-PS1-8

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha
• beta
• gamma
• none

Tags

NGSS.HS-PS1-8

Uranium-238  decays into  Thorium-234  by emitting .........

• an alpha particle
• a beta particle
• gamma rays
• visible light

Tags

NGSS.HS-PS1-8

A helium nucleus with two protons and two neutrons is called a(n) ____.  

• alpha particle
• electroscope
• beta particle
• gamma ray

Tags

NGSS.HS-PS1-8