Which radiation does an atom need to emit to change its nucleus?
alpha and beta
beta and gamma
gamma and alpha
What are the Three Types of Radioactivity called?
Alpha
Omega
Beta
Gamma
Neutron
Sometimes the of an atom is un A change will occur in the to make it more stable. The change is called a . When a nucleus decays it will emit (give out) some or waves.
❌ particles do the most damage because they are the heaviest and they carry a positive charge
When the of an atom possesses either too many or too few compared to the number of protons it becomes . These are called . Unstable nuclei split up in a process called radioactive and emit radioactive radiation.
What does the Nucleus of an Atom contain?
Proton
Electron
Why do Gamma Rays and Beta particles penetrate further than Alpha?
They decay more atoms along the way
They ionize more atoms along the way
They ionize fewer atoms along the way
They reflect fewer atoms along the way
What is the Atomic Number?
The number of protons
The number of protons and neutrons
The number of neutrons
The number of the particles in the nucleus
What is the mass number
The number of electrons plus neutrons
The number of protons plus neutrons
Isotopes are the atoms of an element with different numbers of . They have the same number, but different numbers.
Alpha is positive Beta has no charge Gamma is negative
Why do Alpha particles cause the most damage?
They are less ionizing than Gamma or Beta
They are more ionizing than Gamma or Beta
They are the heaviest and they carry a positive charge
They are the lightest and they carry a positive charge
How can a Nucleus be Unstable?
If the atom has the same number of protons and neutrons
If the atom has a different number of protons and electrons
If the atom has a different number of protons and neutrons
An Alpha particle is made of ___________ and____________,like the element_____________.
2 protons
2 neutrons
2 electrons
Lithium
Helium
Hydrogen
Oxygen
Does an Alpha Particle have More Mass than a Beta Particle?
Yes
No
Does an Alpha Particle have More Penetrating Ability than a Beta Particle?
Is an Alpha Particle More Ionising than a Gamma Ray?
After a radioactive has emitted an particle, the number goes down by 4 and the number goes down by 2.This change in the produces a different
radiation is not as dangerous because it is unlikely to reach living inside the body. and radiation are the most dangerous sources because they can the skin and damage the cells inside.
