Adv. Chemistry Unit 5

An alpha particle has a mass of __ and contains __ protons and __ neutrons.

4, 2, 2

A beta particle has a mass of __ and turns a __ into a _ . As a result, Beta decay does not change the what but changes the what?

0, neutron, proton, mass, identity of the element

Gamma radiation __ change the __ or _ but instead releases __

does not, mass, identity of the element, pure energy

The image below is of an __ particle. The top number is the __ and the bottom number is the __

alpha, mass, protons

Emitting an alpha particle is the same as emitting the nuclear makeup of which element?

Helium

When an alpha particle is emitted, what is the change in atomic number?

decreased by 2

When an alpha particle is emitted, what is the change in mass?

Decreased by 4

The mass of an atom is equal to...

number of protons + number of neutrons

The atomic number of an atom gives the identity of an atom.  It is equal to...

the number of protons

Emitting a beta particle is the same as emitting which subatomic particle?

electron

When a beta particle is emitted, there is no change in atomic number, but how does it change the mass?

increased by 1

Radiation is the only way atoms of one element can do what?

Turn into another element

What is fission?

The splitting of a heavy nucleus into two or more lighter nuclei (alpha, beta, and gamma radiation are this type)
Used for nuclear power plants, carbon dating, and warfare

What is fusion?

Two or more light nuclei combine to form a single nucleus of greater mass
Used for creating every element up to iron (the star killer), star fuel, and scientific discovery