Vocab
What is the definition of Nucleus?
It's the center of the atom.
What is the structure of an atom?
The amount of protons, neutrons, and electrons in an atom
Where does Nuclear Fusion take place?
In the Suns core
99.8%
What is an istope?
Two or more forms of the same element that contains an equal amount of protons but a different amount of neutrons which gives a different mass number.
What is a Isotope?
Two or more atoms with the same amount of protons and a different number of neutrons.
Identify two ways to decrease the mass number of an atom
Remove a proton and a neutron.
What is the sun mostly made up of?
Hydrogen
Why can the sun's gravity hold planets and other objects in orbit?
The sun is so large its gravity is strong enough to hold all the planets up.
Why do isotopes of the same element always have the same number of protons?
Because the amount of protons doesn't change when theres an isotope, the amount of neutrons does, so the element stays the same either way.
What is Nuclear Fusion?
The process that produces energy in a star.
What particles are always found in the nucleus?
Protons and neutrons.
What happens to the lost mass that does not become energy in the fusion process?
The lost mass becomes energy
What produces enormous amounts of energy through nuclear fusion?
Core
Neutrons
What is the definition of the Atomic Number?
The number used to identify an element on the periodic table
What particle change the mass of an atom?
Electrons
Which elements start in the fusion process and what does the end element become at the end
The fusion process starts with four Hydrogen atoms and it fuses to become one atom of Helium
How is the sun's composition different from Earth's surface?
The earth surface is a solid, as for the sun, it's made entirely out of liquid plasma.
How will the change in the number of neutrons will affect the mass weight of an isotope?
It directly effects the mass weight of the isotope, by it either increasing or decreasing depending on how many neutrons are added or subtracted from the isotope
What is the definition of Mass Number?
The total number of protons and neutrons in an atom (not found in the periodic table).
Identify two ways to make a positive ion
Remove an electron or add a proton.
The core of the atom is under.....?
Heat and pressure
Giant reddish loops of gas linking sunspots regions are called?
Prominences
The number of neutrons in the atom will be different to the original element, the mass number will be different