Pre/Post Test Atomic Structure & NuclearChemistry

A nuclear reaction where a nucleus splits into two smaller nuclei is... 

• Fission
• Fusion
• Gamma decay
• Beta decay

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

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

What happens when the number of protons in an atom changes? 

• The number of electrons changes too 
• Usually nothing happens, unless the atom is radioactive 
• The atomic nucleus explodes
• It becomes a completely different atom, with different properties 

In what part of an atom can protons be found? 

• Inside the electrons
• Inside the neutrons 
• Inside the atomic nucleus 
•  Inside the electron shells

What element is the ?

• Ag-115
• Cd-115
• Pd-115
• Not Listed

Which type of nuclear radiation is being emitted here?

• alpha
• beta
• gamma
• none

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Negatively charged particles found outside of the nucleus are called

• electron
• protons
• neutrons
• nucleons

Positively charged particles found in the nucleus of an atom are called

• protons
• neutrons
• electrons
• isotopes