Final Study guide Flashcards
What 2 subatomic particles are added together to find the mass #
Protons and neutrons
How do you determine the number of protons for a given element
Look at the atomic #
How do you calculate the number of neutrons
Mass #- atomic # = Neutrons
Isotopes of the same element have different mass #s because they differ in their # of
Neutrons
Alpha decay symbols
4
He
2
Beta-decay symbol
0
e
-1
Gamma decay symbols
0
fish
0
What happens during alpha decay
2 protons and 2 neutrons are emitted
What happens during beta decay
One e- is emitted from a neutron that becomes a proton
What happens during gamma decay
A high energy wave is released
What happens during nuclear fission
A large nucleus splits into 2 and creates an energy wave
What happens during fusion
2 small nuclei become a large nucleus creating energy
Is the energy from the sun a result of fission or fusion
fusion
Our sun today
H+H=He
Red giant
He+He+He=C
Red giant 2
All elements up to nickle
The sun explodes
All elements up to uranium are formed
Ionic bond
metal and a nonmetal Transferred e- Strong bonds Bp & Mp- are high Conduct electricity when dissolved in water
Covalent bond
nonmetal and a nonmetal Shared e- Weak bond Mp & Bp- are low Conducted electricity never
Metallic bond
Metal and a metal Sea of e- Strong bond Bp and Mp- High conducts as a solid
What is a cation
Positive that loses electrons to be formed
Anion
negative that gains e- to be formed
