Module 1 Flashcards
Most accepted theory of the origin of the universe
Big bang theory
Bigbang started with ______ observation
Edwin hubble
2 observations of edwin hubble
1.milky way is not the only galaxy
2. Galaxies are in constant motion
The birth of the big bang theory was Georges Lamaitre and his question
How did the universe start
Quarks form
Protons and neutrons
Phases of the big bang theory
- Boiling soup
- Superhot fog
- Form atoms
- Galaxy formation era
- First dying star
Explain “Boiling soup” phase
a. rapid cool off
b. Quarks form proton and neutron
Explain “superhot fog” phase
A. Heated proton and electron hinder light
B. First light elements were created
First light elements created
Deuterium, lithium, helium
Explain “form atoms” phase
First and second elements are produced (hydrogen and helium)
Explain “galaxy formation era” phase
Hydrogen and helium form giant clouds that became the galaxies and stars
What produced heavy elements
Dying stars or the supernova
Subatomic particles of an atom
Proton, neutron and electron
Big bang theory timeline
- singularity era
- bigbang and inflation
- formation of matter and antimatter
- annihilation
- cooling down
- nucleosynthesis
- recombination
- dark ages
- formation of cosmic body
Stable form of hydrogen
Deuterium
Combines nucleus to larger nucleous
Nuclear fussion
Splits nucleus into smaller nuclei
Nuclear fission
Radio active type of hydrogen
Tritium
Formation of light elements
Big bang nucleosynthesis
Formation of elements 4(Li) to 26(Fe)
Stellar nucleosynthesis
Formation of elements 27(Co) and other
Supernova nucleosynthesis
Atomic theory of atom
John Dalton
Atomic theory, electrons and plum pudding model
J.J Thompson
Atomic theory, protons at the center of atom
Ernest Rutherford
Atomic theory, electron shells/energy levels
Neils Bohr
Atomic theory, neutrons and nucleus
James Chadwick
Atomic theory, electron as waves and in cloud like movements
erwin shrodingher
it is a neutral atom when
theres no net charge
anion
negative charge
cation
positive charge
Atoms that have the same number of proton but different number of neutrons
Isotopes
trace amount in earth
Technitium
Where is technitium naturally found
Red giant stars
proton is equal to
atomic number and electrons
Neutrons is
Mass number - protons
Electrons and Protons are
Mass number - neutrons
mass number is
Protons + Neutrons
Left or right
Bombardment of alpha particle
Left, because its addition
Left or right,
Loss of alpha particle
Right, because loss
Left or right,
Electron capture
Left, because drawing electron into atom’s nucleus
Left or right,
Beta decay
Right, because its a loss of beta
Gamma release
Gama radiation
Proton into a neutron
Positron emmision
Nuclear reactions that have change in elements
Alpha, positron, beta
Nuclear reaction with no change
Gama
