Radioactive Decay

Identify the missing substance in each of the following nuclear reactions.
 _____→¹³⁷ ₅₆ Ba + ⁰ ₋₁ e 

• ¹³⁷₅₅Ba
• ¹³⁷₅₇La
• ¹³⁸₅₆Ba
• ¹³⁷ ₅₅Cs

Tags

NGSS.HS-PS1-8

Which nuclear emission involves the release of helium nuclei?

• alpha
• gamma
• positron
• beta

Tags

NGSS.HS-PS1-8

Which of the following nuclear emissions involves the release of a particle with no mass and a charge of +1?

• proton
• beta
• positron
• alpha

Tags

NGSS.HS-PS1-8

Oxygen-16 undergoes positron emmission to form what daughter isotope and decay particle?

• ¹⁶₇N + e⁺
• ¹⁷₈O + e⁺
• ¹⁶₆O + e⁺
• ¹⁵₇N + e⁺

Tags

NGSS.HS-PS1-8

What element does carbon-14 become after undergoing beta decay?
 

•  ₇N¹³ 
• ₅B¹⁴
• ₇N¹⁴ 
• ₆C¹⁴ 

Tags

NGSS.HS-PS1-8

What type of radioactive decay increases the atomic number of a radioactive atom?    

•  gamma emission
•  beta emission
•  alpha emission 
•  fusion

Tags

NGSS.HS-PS1-8

Which of the following correctly describes the charge of beta particles and alpha particles? 

• Alpha particles are positively charged, and beta particles are negatively charged.
• Alpha particles and beta particles are both negatively charged.
• Alpha particles are negatively charged, and beta particles are positively charged.
• Alpha particles and beta particles are both positively charged

 For the following nuclear reaction, what was the beginning radionuclide (X)?
      X  →   ₈₆Rn²²² + ₂He⁴ 

• Radium-222
• Radon-222
• Radon-226
• Radium-226

Tags

NGSS.HS-PS1-8

This is the symbol for a(n)

• alpha particle
• beta particle
• gamma particle

In the symbol ²⁰⁶₈₂Pb what does 206 stand for?

• Mass number
• Atomic number
• Atomic mass
• Number of protons