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Chemistry

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Owen Kris

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โˆ™ 2021-09-30 20:42:05
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Cards in this guide (20)
Nuclear fission reactions involve the

Splitting of atom

What process by which one element changes into another element

Transmutation is the process by which one element changes into another element.

How many neutrons are in an atom of lead

In nature there are a number of isotopes of lead:

Lead-204, 122 neutrons

Lead-206, 124 neutrons

Lead-207, 125 neutrons

Lead-208, 126 neutrons

Lead-210, 128 neutrons

The heaviest of the forms of radioactive decay is

alpha decay

Dating is the method of determining the dates of old objects by using radioactive elements

Radiometric

In situations involving equal masses chemical reactions produce less energy than reactions

nuclear

Possible options for spent nuclear fuel rods include

burying them in deep caverns.removing lighter nuclei and reusing them

re-mixing them and putting them back in the mines

Critical mass is the of material required to produce a chain reaction

minimum amount

Which of the following processes depend on fusion

The atomic bombs used in World War II

The energy production in the sun

(APEX)

For a sustainable fission reaction each fission must produce exactly additional fission reactions

one

careful, apex can be tricky. i had to use the numerical version

The differences between nuclear reactors and nuclear bombs include what

Nuclear reactors produce exactly one additional fission for each fission reaction while nuclear bombs don't

Nuclear bombs are runaway fission reactions and reactors aren't

(APEX)

178 79 Au Is an of gold

isotope

Elements become radioactive when the repulsive force overcomes the strong nuclear force

Electromagnetic

115 49 In has neutrons

66 neutrons

The half life of gold 198 is 27 days After days 14 of the original amount of gold 198 will remain

5.4

Which is not a way that a U-235 atom could fission

235 92 U + 1 0 n yields 140 52 Te + 94 40 Z + 3 1 0 n + energy

Radium-228 decays by alpha decay Part of the nuclear equation is shown

224

When one elements changes into another does the number of protons change

The changing of one element into another, called transmutation, involves a change in the nucleus of the atom. And the number of protons in the nucleus must change for one element to become another one. It is the number of protons in the nucleus of an atom that determines what element that atom is, and only a change in the proton count will herald the change of one element into another. The neutron count may or may not change in transmutation, but be assured that the number of protons will change.

The atomic number is the number of an atom

The atomic number is the number of _____ an atom

Which type of particle has a charge of -1 and a mass number of 0

beta particle (ApExxxxxxxxx)

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