What happens to isotopes that are not stable?

Isotope Stability and Nuclear Forces

Interactive Video
•
Physics, Chemistry, Science
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They become more stable over time.
They decay and form other elements.
They increase in mass.
They remain unchanged.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For low mass isotopes like helium, what is the relationship between protons and neutrons for stability?
Equal number of protons and neutrons.
More neutrons than protons.
No specific relationship.
More protons than neutrons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What force is responsible for overcoming the electrostatic repulsion in low mass isotopes?
Strong nuclear force
Magnetic force
Gravitational force
Weak nuclear force
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As isotopes get heavier, what happens to the number of protons and neutrons?
Protons increase, neutrons decrease.
Both protons and neutrons decrease.
Protons decrease, neutrons increase.
Both protons and neutrons increase.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the range of the strong nuclear force?
One centimeter
One meter
One femtometer
One kilometer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do larger nuclei require more neutrons than protons?
To decrease the size of the nucleus.
To increase the atomic number.
To balance the atomic mass.
To strengthen the nuclear force against electrostatic repulsion.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What limits the size of stable nuclei?
The number of electrons.
The strength of gravitational forces.
The balance between nuclear force and electrostatic repulsion.
The temperature of the environment.
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