Isotopes & Radioactivity

Isotopes & Radioactivity

Please have your notebooks ready!

Multiple Choice

What is the element symbol?

• Argon

• Ar

• 18

• 39.948

Multiple Choice

What type of charge does a neutron have?

• negative

• positive

• no charge/neutral

Multiple Choice

What type of charge does a proton have?

• negative

• postive

• no charge/neutral

Open Ended

What's one positive thing that's going on in your life? Or, what's something you're grateful for?

Multiple Choice

Which of the following defines the element?

• The number of protons

• The number of neutrons

• The mass number

• The symbol

Multiple Choice

Isotopes have the same ____________

• Mass number

• Number of electrons

• Number of neutrons

• All of these

Multiple Choice

Isotopes have different ____________

• Numbers of neutrons

• Mass numbers

• Stability

• All of these

Multiple Choice

_______________ is the process by which unstable atoms emit radiation until they become stable.

• Radiation
• Chemical Reaction
• Radioactive Decay
• Isotopes

Multiple Choice

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time

Multiple Choice

The three types of nuclear radiation in order of decreasing penetrating power are

• alpha, beta, gamma

• alpha, gamma, beta

• beta, alpha, gamma

• gamma, alpha, beta

Multiple Choice

What is the mass number for this element?

• 12

• 14

• 26

• 38

Multiple Choice

How many protons does this isotope have?

• 41

• 28

• 15

• 13

Multiple Choice

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

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Multiple Choice

This is the correct equation for the decay of Ra.

• true

• false

Multiple Choice

This is the correct equation for U-238 decay.

• true

• false

Multiple Choice

Complete the nuclear equation and determine the type of decay that is occurring in this reaction.

• alpha

• beta

• gamma

• none

Multiple Choice

What particle completes this reaction?

• alpha particle
• beta particle
• gamma particle
• neutron

Multiple Choice

In a correctly written symbol what would be located in the "A" position?

• number of neutrons
• atomic number
• number of electrons 
• mass number

Multiple Choice

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70