The flashcards below were created by user
catnthuhat
on FreezingBlue Flashcards.
-
The half life of carbon 14 is 5730 years. If a 1 gram sample of old carbon is 1/8 as radioactive as 1 gram of a current sample, then the age of the old sample is about...
17,200 years.
-
In order for an atom to decay to an element which is one greater in atomic number, it can emit...
one alpha particle and 3 beta particles; on positron and 2 beta particles; one beta particle.
-
It's impossible for a hydrogen atom to emit an alpha particle. (true/false)
true
-
Which experiences the greatest electrical force in an electric field?
alpha particle.
-
A gram of radioactive material has a
half life of one year. After 4 years, how much radioactive material will be left?
1/16
-
When the hydrogen isotope tritium 3 emits a beta particle, it becomes an isotope of...
helium.
-
When a nucleus emits a beta particle, it's atomic number...
increases by 1.
-
Which body is heated in it's interior by nuclear processes...
the sun and Earth.
-
The helium in a child's balloon is composed of...
alpha particle remnants of previous radioactive processes and former beta particles.
-
The most harmful radiaitons are those that...
damage living cells.
-
The amount of radiation we personally encounter that originates in the Earth's and the atmosphere's natural background is...
more than half.
-
All deposits of natural uranium contain appreciable amounts of...
lead.
-
Carbon 14 is produced in the atmosphere principally by...
cosmic ray bombardment.
-
(blank) is a radioactive isotope.
Carbon 14
-
The high temperature of the Earth's interior is due mostly to...
radioactivity.
-
When a gamma ray is emitted by a nucleus, the nucleus then has appreciably less...
neither mass nor charge.
-
When an beta particle is ejected from a nucleus, the nucleus then has a greater...
charge.
-
When an element undergoes nuclear transmutation, the result is a completly different...
element.
-
The half life of a radioactive substance is INDEPENDENT of...
the number, if large enough, of atoms in the substance; whether the substance exists in an elementary state or in a compound; the temp of the substance and the age of the substance.
-
The half-life of an isotope is one day. At the end of two days the amount that remains is...
one-quarter.
-
Electric forces within an atomic nucleus tend to...
push it apart.
-
Different isotopes of an element have different numbers of...
neutrons.
-
Deuterium and tritium are both....
forms of hydrogen and isotopes of the same element.
-
The atomic number of an element is thesame as the number of its...
protons.
-
A nucleon is either...
a proton or a neutron.
-
Xrays are most similar to...
gamma rays.
|
|