Module 2 Flashcards
Elements are made up of tiny particles, what are these particles
the neutron, proton and electron.
are the elements that exist in the early beginning
Hydrogen and Helium
is a one-dimensional point which contains a huge mass in an infinitely small space,
Singularity
- The basic homogeneity in distribution of matter in the universe was established as a consequence of the first phase of inflation.
Inflation
- was the nuclear fusion and the formation of new nuclei actions in the early stages of development of the universe.
Nucleosynthesis
- is the formation of the capture of free electrons by the cations in a plasma
Recombination
The atomic number is the number of
protons
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.
Henry Gwyn-Jeffreys Moseley
successfully carried out a nuclear transmutation reaction a process of transforming one element or isotope into another element.
Ernest Rutherford
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
Elements with atomic numbers greater than 92 (atomic number of uranium) are called
transuranium elements.
Elements in the Periodic Table are arranged according to its
atomic weight
created a classification of elements based on their atomic weight.
Dmitri Mendeleev
His method of identifying elements by shooting electrons and looking at x-rays became a very useful tool in characterizing elements, and is now called
x-ray spectroscopy.
successfully carried out a nuclear transmutation reaction
Ernest Rutherford
