Nuclear Chemistry Flashcards

Flashcards for Nuclear Chemistry Unit 9 Study Guide

What are the products of the nuclear equation with Plutonium-239 (239Pu) as the reactant?

He + U

What are the products of the nuclear equation with Uranium-232 (232U) and Helium (He) as reactants?

Pu + 0n

What is the product of the nuclear equation with Boron-43 (43B) and Helium (1He) as reactants?

208TI

What is the product of the nuclear equation with Potassium-37 (3719K) as a reactant?

Ca

What are the products of the nuclear equation with Einsteinium-256 (256Es) as a reactant?

Held + 20'n

What are the products of the equation when 2 HCI reacts with CaCO3?

CaCl2 + H2O + CO2

If the half-life of plutonium-239 is 24,110 years and you start with 100 grams, how much remains after 96,440 years?

6.25 grams

The half-life of radium-224 is 3.66 days. What was the original mass of radium-224 if 0.0500g remains after 7.32 days?

0.200g

Iodine-131 has a half-life of 8.0 days. How many grams of an original 160 mg sample will remain after 40 days?

5g

1.25 g of Manganese-56 remains after 7.8 hours when the original sample was 10 g. What is the half-life?

2.6 hours

How is Iodine-131 different from lodine-126, concerning the number of neutrons?

Iodine-131 has 5 more neutrons than Iodine-126.

Which reaction occurs in the sun? Write the reaction.

Fusion; H + H -> He + energy

List the types of radiation in order of ability to penetrate a piece of lead (from most to least penetrating).

gamma, beta, alpha

What temperature does a nuclear reaction have to be

1 million degrees

Tank radioactive decay by decreasing size

Alpha ,beta, gamma

What is the fuel for nuclear fusion in the center of the sun

Hyderogen

When there is emission of a gamma ray how is the atomicc number affected

Doesn’t change atomic number no change

List benefits of the suns radiation

vitamin D, energy, wramth

Give an example of fission reaction

Nuclear power plant

Give 3 examples of radioactive elements

Radium ,elements higher than atomic number 83

List major health effects of radiation exposure and 3 factors related to exposure

Cancer, death, skin damaage, dna mutation depending png duration dose or time

State what occurs as a radioactive isotope goes through decay

Unstable nucleus becomes a stable nucleus

List the stages of life for a low mass star

Nebula, prostar, main sequence, red giant, white dwarf, hypothetically black dwarf

Describe a black dwarf

lump of matter that stopped giving radiation final stage theoretical

How do stars give of energy

Prostar cycle and carbon cycle

what happens when hydrogen fusion stops

Helium fussion stars

What does it mean that there are iron absorption lines in the solar spectrum

There is iron in solar atmosphere

What fo the dark lines in the suns spectrum represent

Light that is absorbed by the suns atmosphere