Nuclear Chemistry Review

Beta particles have...

• A negative charge and zero mass

• A negative charge and almost no mass

• A positive charge and a 4 AMU mass

• No charge and no mass

Tags

NGSS.HS-PS1-8

Alpha particles have...

• A negative charge and zero mass

• A negative charge and almost no mass

• A positive charge and a 4 AMU mass

• No charge and no mass

Gamma particles have...

• A negative charge and zero mass

• A negative charge and almost no mass

• A positive charge and a 4 AMU mass

• No charge and no mass

Which type of particle has a positive charge?

• X-rays

• Gamma

• Alpha

• Beta

Which type of radioactive decay will not change the identity of the atom?

• Beta decay

• Alpha decay

• Gamma decay

• All of these change the identity of the atom

Tags

NGSS.HS-PS1-8

An atom of carbon-14 undergoes beta decay. Give the name (element-#) of the isotope produced.

(a)  

Tags

NGSS.HS-PS1-8

An atom of ⁶⁹Zn undergoes beta decay.  What will the resulting isotope be?

• copper-69

• nickel-65

• gallium-68

• gallium-69

Tags

NGSS.HS-PS1-8

An atom of Uranium-237 undergoes alpha decay.  Give the name (element-#) of the daughter isotope produced.

(a)  

Tags

NGSS.HS-PS1-8

When an atom undergoes alpha decay, the mass number ____________________ and the atomic number _____________.

• stays the same; increases by 1

• stays the same; stays the same

• decreases by 2; decreases by 2

• 
  decreases by 4; decreases by 2

Tags

NGSS.HS-PS1-8

Based on the graph, how many hours does it take for 20 grams of the substance to decay?

• 6 hours

• 10 hours

• 18 hours

• 16 hours