Nuclear Chemistry Practice Test

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

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

What is the missing isotope that will balance the following nuclear equation?
⁹₄Be  +  ¹₁H →  _____  +  ⁴₂He

• ¹⁰₅B
• ¹⁰₅Ne
• ⁶₃Li
• ⁶₃C

Tags

NGSS.HS-PS1-8

Tags

NGSS.HS-PS1-8

• beta decay

• alpha decay

• positron emission

• electron capture

• Nuclear fusion

Tags

NGSS.HS-PS1-8

4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?

• 41.97 amu
• 42.19 amu
• 10.43 amu
• 40.04 amu

Tags

NGSS.HS-PS1-7

The top number in this isotope notation is

• the mass number
• the atomic number
• the atomic mass
• the neutron number

The bottom number in this isotope notation is

• the mass number
• the atomic number
• the atomic mass
• the neutron number

According to the isotopic notation for copper-63, how many neutrons are present in this type of atom?

• 29
• 34
• 63
• 92

Tags

NGSS.HS-PS1-8

The correct isotopic notation for Br-80 is

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

What is the most abundant isotope? (answer in hyphen notation)

Tags

NGSS.HS-PS1-1