Nuclear Chemistry review

Front

Nuclear reactions involve the ____________; whereas chemical reactions involve the ______________.

Back

nucleus; electrons

Front

In the symbol 16 7 N what does the 7 stand for?

Back

Atomic number

Front

What is another name for an alpha particle?

Back

helium nucleus

Front

Atoms of 235 92 U and 238 92 U differ in structure by three (3) __________.

Back

neutrons

Front

Radium-223 (223 88 Ra) undergoes gamma decay to produce what daughter isotope and decay particle?

Back

223 88 Ra + γ

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

Define isotopes.

Back

Atoms of the same element with different numbers of neutrons.

Front

What is beta decay?

Back

A type of radioactive decay in which a beta particle (electron or positron) is emitted.

Front

What is the role of a neutron in the nucleus?

Back

Neutrons help stabilize the nucleus by offsetting the repulsive forces between protons.

Front

What is a gamma ray?

Back

A high-energy electromagnetic radiation emitted during radioactive decay.