The Atomic Number and the Synthesis of New Elements Flashcards
It is a device that is used to speed up the protons to overcome the repulsion between the protons and the target atomic nuclei by using magnetic and electrical fields.
Particle Accelerator
It is a one-dimensional point which contains a huge mass in an infinitely small
space
Singularity
He noticed that shooting electrons at elements caused them to release x-rays at
unique frequencies
Moseley
He synthesized element with atomic number 43 using a linear particle
accelerator
Ernest Lawrence
This is known as the origin of light elements.
Primordial Nucleosynthesis
Process that can produce elements up to #83 - Bismuth
. S Process
In this process, there’s a buildup of a VERY heavy isotope, then as beta-decays occur, you march up in atomic number and produce heavy product.
R-Process
In this process, there’s a buildup of a VERY heavy isotope, then as beta-decays occur, you march up in atomic number and produce heavy product.
R-Process
. It was created by the bombardment of molybdenum by deuterons (heavy hydrogen, H12), by Emilio Segre and Carlo Perrier in 1937
Technetium
These are elements with atomic numbers beyond 103.
. Super Heavy Elements
Which of the following statements is true for a 25Mg+2 cation?
it has 12 protons, 10 electrons, and 13 neutrons
.The isotope Cr–53 is produced by the beta decay of which of the following:
53V
Which particle is absorbed when 58Fe 🡪 59Fe?
neutron
. The isotope Ti–48 is produced by the alpha decay of which of the following:
52Cr
. In the initial sequence of thorium-232 decay, an alpha particle is emitted followed by a beta particle. What is the product of these two decay steps?
232Th 🡪 α particle + β particle + ?
actinium-228
Cobalt-60 decays to nickel-60. What particle is emitted?
electron
Nucleosynthesis
was the nuclear fusion
and the formation of new nuclei actions in the early stages of the expansion the
universe
Recombination
the formation of the capture of free electrons by the
cations in a plasma
● Henry Gwyn-Jeffreys Moseley
was an English physicist who demonstrated
that the atomic number, the number of protons in an atom, determines most
of the properties of an element.
In 1919, Ernest Rutherford s
successfully carried out a nuclear transmutation
reaction a process of transforming one element or isotope into another
element
JDmitri Mendeleev
created a classification of elements based on their atomic
weight
Henry Moseley was a researcher at Rutherford’s laboratory.
Henry Moseley was a researcher at Rutherford’s laboratory.
James Chadwick
discovered the neutron in 1932, as a previously unknown neutral particle produced along with 12C by the nuclear reaction between 9Be and 4
y Emilio Segre and Carlo Perrier in 1937
The first element to be prepared that does not occur naturally on the earth,
technetium, was created by bombardment of molybdenum by deuterons (heavy
hydrogen, H12),
