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Radiation
Isotopes
Atoms
The Periodic Table
Half-Life/Band of Stability
100
This type of radiation occurs with the emission of a helium atom from the nucleus.
What is alpha radiation?
100

The mass number of Helium-4 is ___.

4

100

What is the charge of a proton, neutron, and electron?

Positive, neutral, negative

100
Elements with similar properties are organized this way on the periodic table.
What is in a group or family?
100

What type of decay occurs in all nuclides whose neutron number is too high compared to protons?

Beta decay

200
The most penetrating and dangerous form of radiation.
What is gamma radiation?
200
The number of neutrons in a carbon-14 isotope?
What is 8?
200
The number of protons in an element is shown here on the periodic table.
What is the atomic number?
200

Most reactive nonmetal in period 4

Bromine
200

What type of decay occurs in all nuclides that have more than 83 protons?

Alpha

300
Beta decay occurs when this happens.
What is a neutron decays into a proton and an electron is emitted?
300

Chlorine-35 is one isotope of chlorine. Chlorine-37 is another isotope of Chlorine. How many protons and how many neutrons are in each isotope of chlorine?

Cl-35: 18n 17p
Cl-37: 20n 17p

300

How many electrons are in a neutrally charged atom of cesium?

55

300

Most reactive metal in period 2

Lithium

300

What kind of decay would zinc-50 most likely go through? (Look at your band of stability in your packet)

Electron capture

400

Plutonium-239 undergoes alpha decay to produce what product?

Uranium-235

400

Average atomic mass of neon if Ne-20 is 90% of its isotopes and Ne-22 is 10%

20.2 amu

400

What subatomic particles are found in the nucleus?

Protons and neutrons

400

7th transition metal in period 5

Rhodium
400

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

0.25g

500

The product of U-238 goes through alpha decay followed by beta decay.

Palladium-234

500

Of all chlorine atoms, 75.77% are chlorine-35. All other chlorine atoms are chlorine-37. What is chlorine's average atomic mass?

35.4856 amu

500
What is the mass number if an atom vanadium has 30 neutrons?

53

500

Unreactive element in period 6

Radon

500

How long will it take for 18.0 grams of Ra-226 to decay to leave a total of 2.25 grams? Ra-226 has a half-life of 1600 years.

4800 years