Physical science

• STELLAR NUCLEOSYNTHESIS: is a process of the formation of heavy elements within the stars
• NUCLEOSYNTHESIS : is a formation of light elements within the stars
• INTERSTELLAR MATTER: refers to the materials between stars
• SUPERNOVA : is the violent explosion of stars
• INTERSTELLAR MEDIUM: is all the colletion of interstellar matter in the stars
• INFRARED RADIATION : is a form of energy detected in the process of star formation
• INTERSTELLAR GRAIN: the rock like materials found in the star
• INTERSTELLAR GRAIN: the rock like materials found in the star
• MAIN SEQUENCE STAR: when the hydrogen of the protostar converted into helium in its core.
• RED GIANT STAR:  when the helium of the main sequence converted into carbon in its core.
• WHITE DWARF:  the remainder of stars that came from the massive explosion called supernova
• ATOMIC NUMBER:  refers to the number of protons in the nucleus of an elements. It is the identity of an element.
• MASS NUMBER :               The sum of the number of protons and neutrons in the nucleus of an atom
• PARTICLE ACCELRATOR : The scientist used this device to synthesize new synthetic elements
• CYCLOTRON: is a particle accelerator used in alternating electric field to accelerate particles that move in a spiral path in the presence of magnetic field.
• TECHNETIUM    : the first ever man-made element developed
• DEUTERON: A particle that consists of proton and neutron
• HENRY MOSELEY: He played a significant development in determining the atomic number of the elements.
• EDWIN MCMILLAN: he discovered the element neptunium
• NEUTRAL ATOM: The number of protons is equal to the number of electrons.
• A : symbol for mass number
• Z: symbol for Atomic Number
• p(+) : proton (positive charge)
• e (-) : electron (negative charge)
• n (0) : neutron (o charge)
• URANIUM : the heaviest element found in 1930
• TRANSURANIUM :  group of elements that has atomic number of 90 above. The elements under this group are unstable and radioactively decay into other elements
• Z = p(+) = e(-)
• A = P(+) + e(-)
• n(0) = A – Z
• POLARITY : the result of an uneven distribution of charges of atoms in a molecule
• NON POLAR BOND: the bond of the molecules which electron are equally shared.
• POLAR BOND: there is unequal sharing of electron between and among atoms.
• ELECTRONEGATIVITY: it is the ability of an atom in a molecule to attract electrons. As electronegativity increases, the attraction of the atom for electrons increases.
• LONE PAIRS: it is the non-bonding electron . The bonded electrons are called bonding pairs
• The bigger the star, the heavier elements it can produce inside the core
• SHELL FUSION is a process of formation of new elements in its layers or regions
• What is the strongest Intermolecular Forces?

  HYDROGEN BONDING
• Hydrogen and ________ are the primary elements found through nucleosynthesis in stars.

  HELIUM
• The atomic number of an element represents the number of ___________.

  PROTON