Atom
Radiation
Periodic Table
Vocab
100
The center of the atom, composed of protons and neutrons
What is the Nucleus?
100
The energy released when a radioactive atom decays.
What is radiation?
100
The first element on the periodic table of elements.
What is Hydrogen
100
Smallest form of matter. Retains chemical properties of that element.
What is an atom?
200

Atom with the atomic number 8

Oxygen

200
Average weight of all an atoms isotopes, not including electrons.
What is the Atomic Mass?
200
The building block of protons and neutrons, but NOT ELECTRONS!
What is a Quark
300
Atoms of the same element with varying numbers of neutrons.
What are isotopes?
300
Shields us from alpha particles.
What is our skin?
300

How is the periodic table organized?

Its organized by groups and periods. The groups share similar properties

300

The breaking apart of the nucleus and the release of energy in the forms of Alpha, Beta, Gamma radiation.

What is Radioactivity?

400

Complete the equation: mass number =

number of protons + number of neutrons

400
The tool used to detect radiation.
What is a Geiger Counter?
400

Group of metals that become more reactive as you go down the group

Alkali metals

400

The name for the splitting of an atom

Fission

500
The subatomic particle that was discovered by Thompson
What is the electron?
500

What is the difference between Alpha/Beta radiation and gamma rays?

Alpha/Beta: Actual particles of an atom Gamma: Actual energy.

500
The last group on the periodic table, composed of non-reactive gases.
What are the Noble Gases?
500
The type of reaction in the sun

Nuclear fusion

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