Nuclear radiations (part 1)

Nuclear radiations

(part 1)​

By Monica Youssef

Multiple Choice

What is an atom that has an unstable nucleus and undergoes radioactive decay?

• Radiation
• Radioactivity
• Radioactive

Multiple Choice

Radioactive materials have unstable...

• electrons
• protons
• nuclei
• neutrons

Multiple Choice

What does it mean when an element is radioactive?

• atom emits radiation
• nucei unstable due to uneven p to n ratio
• nuclei changes to become stable
• all of the above

Multiple Choice

The process of nuclear change in an atom of radioactive material is called... 

• nuclear decay
• nuclear mass
• isotopes
• radon

Multiple Choice

After the nucleus of a radioactive element undergoes changes, the element can transform into ...

•   (a)  a different isotope of the same element.
• (b) an entirely different element.
• Both (a) and (b)
• Neither (a) nor (b)

Multiple Choice

A helium nucleus with two protons and a mass number of four is called a(n) ____.

• alpha particle

• electroscope

• beta particle

• gamma ray

Multiple Choice

What type of radiation is this?

• Alpha

• Beta

• Gamma

Multiple Choice

What is the mass of this particle?

• 0

• 2

• 4

• 6

Multiple Choice

What happens to the atomic number during alpha decay?

• The atomic number decreases by 4
• The atomic number increases by 1
• The atomic number decreases by 2.
• The atomic number stays the same.

Multiple Choice

What type of radioactive decay is happening?

• Alpha

• Beta

• Gamma