If a Nucleus Emits an Alpha Particle,_____

question 167

Multiple Choice

If a nucleus emits an alpha particle,_____.

• A) its atomic number decreases by four and its mass number decreases by two
• B) its atomic number decreases by two and its mass number decreases by four
• C) its atomic number increases by two and its mass number decreases by two
• D) its atomic number is unchanged and its mass number is unchanged
• E) its atomic number is unchanged and its mass number decreases by four