Nuclear Energy Review

In a nuclear power plant, the heat from fission is FIRST used to

Negatively charged

All atoms of the same element have the same

The strong nuclear force or the cosmic glue acts between neutrons and

Thermal pollution causes

Misuse of nuclear weapons/war

Nuclear meltdown:Chernobyl

Neutrally charged

Inside a reactor a substance that makes neutrons move more slowly and keeps it cool is called

Which instrument is used to detect radioactivity?

A chain reaction takes place when fission produces a continuous supply

What two elements does a uranium atom split into? Barium and

The word element comes from a Greek word that means “cannot be divided.”

Which of the following does NOT seem to emit radiation?

The modern atomic theory was proposed by

What was the Manhattan Project?

Positively charged

Nuclear reactions release large amounts of

In the nucleus there are protons and ________

Atoms of the same element are exactly alike in number of protons.

The first person to suggest the existence of atoms was

Found around the nucleus

Radioactivity is a characteristic of elements that are

Dangerous gamma rays

Saves on fossil fuels/nonrenewable resources

Vaseline Glass is Radioactive because of uranium.

In a reactor, the rate of fission is sped up by

To calculate the atomic mass of an element, you must know the mass of its

Nuclear weapons to prevent war

Who was successful at first controlling the chain reaction?

Which process is currently used to produce electricity?

Nuclei with more than 83 protons

Fossil fuels are

Neutrons that have the best chance of hitting a nucleus are moving

U-235 is used as a nuclear fuel because it

The atoms of two or more elements cannot join together.

Who lead the Manhattan Project?

Building the nuclear power plant costs more than anticipated

Has the smallest amount of mass

Nuclear waste: radioactive for a very longtime

Creates lots of energy from very little matter

Medicine; cancer and x-rays/ smoke detectors 

What does the atomic number of an element NOT tell you?

Number of protons or electrons in beryllium is

We have a large majority of the uranium. We won’t be dependent on the Middle East

 Dalton’s atomic theory states that atoms cannot be divided.

After a nuclear reaction, the total amount of matter and energy is

No air pollution 

Atoms with the same number of protons but different number of neutrons.

Families or groups of elements are found

Environmental impact

Person who arranged elements in order of increasing masses and father of the periodic table.

Creates jobs at the power plants

This means that beryllium has _______ as the atomic mass.

Beryllium has ___________ as the atomic number.

Because an atom is neutral, the number of

How are the elements arranged in the periodic table?

Not all elements are composed of atoms.