Test - Nuclear Chemistry

Radioactive materials have unstable...

• electrons
• protons
• nuclei
• neutrons

Tags

NGSS.HS-PS1-8

The type of radioactive particle that can be stopped by a sheet of paper is the ____.

• alpha particle
• beta particle
• gamma ray
• uranium

A helium nucleus with two protons and two neutrons is called a(n) ____.  

• alpha particle
• electroscope
• beta particle
• gamma ray

Tags

NGSS.HS-PS1-8

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

• remains the same
•   decreases by one.
• increases by one.
• increases by two.

Tags

NGSS.HS-PS1-8

Negatively charged particles emitted from a nucleus at a high speed are ____.  

• alpha particle
• gamma rays
• beta particles
• X rays

Tags

NGSS.HS-PS1-8

The three types of nuclear radiation in increasing order of penetrating power are ____.  

•   alpha, beta, gamma 
• X ray, beta, gamma
• alpha, gamma, beta 
• X ray, gamma, beta 

Tags

NGSS.HS-PS1-8

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

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

In the symbol ¹⁶₇N what the 7 stand for?

• Mass number

• Atomic number

• Atomic mass

• Number of neutrons

The time taken for half of an amount of radioactive atoms to decay.

• Nuclear fusion
• Full-life
• Dead time
• Half-life

Tags

NGSS.HS-PS1-8

If Thorium-234 undergoes a beta decay, What element will be left in its place?

• Actinium-234
• Thorium-233
• Protactinium-234
• Radium-230

Tags

NGSS.HS-PS1-8