Atomic Structure and nuclear energy

question

Subtomic
answer

Anything smaller than an atom. ( the particles that make up an atom).
question

Nucleus
answer

center of atom, contains protons and neutrons.
question

Protons
answer

nucleon with a positive charge. mass of one AMU
question

Neutrons
answer

nucleon with no charge. mass of one AMU
question

Electron
answer

Subatomic particle with a negative charge
question

Electron cloud
answer

area around the nucleus where the electrons are found.
question

energy levels
answer

paths in electron cloud where the electrons orbit the nucleus.
question

Valence
answer

electrons in the outer most energy level. Responsible for chemical reactions.
question

Quarks
answer

material that make up the protons and neutrons.
question

Atomic number
answer

number of protons in the nucleus.
question

Atomic mass
answer

number of protons and neutrons in the nucleus. (average mass)
question

Electromagnetic force
answer

attraction between charges. (holds electrons close to the nucleus.)
question

Strong nuclear force
answer

neutrons and protons attract each other at very small distances. (strongest force)
question

Weak nuclear force
answer

causes a neutron by itself to break down into a proton and an electron.
question

gravity
answer

weakest force
question

isotopes
answer

atoms of the same element but different # of neutrons.
question

Transmutation
answer

changing of one atom into another element.
question

Binding of energy
answer

total amount of energy holding the nucleus together. ( caused by strong and weak nuclear forces)
question

fusion
answer

combining atomic nuclei to create a new element.
question

fission
answer

nucleus splits into two smaller nuclei
question

parent nucleus
answer

the original nucleus
question

daughter nucleus
answer

when the nucleus splits into two
question

radioactive
answer

break down and give off subatomic particles and radiation
question

Alpha decay
answer

nucleus ejects 2 protons and neutrons
question

beta decay
answer

neutron turns in proton and an electron (electron is ejected)
question

gamma decay
answer

nucleus gives off energy as gamma rays to become more stable
question

half life
answer

the time it takes for half of the atoms to decay
question

carbon dating
answer

living thing contains lots of carbon
question

Radiation
answer

flow of energy through space
question

non- ionizing radiation
answer

low energy radiation
question

ionizing radiation
answer

high energy that can break chemical bonds in molecules

Get instant access to
all materials

Become a Member