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NUCLEAR CHEMISTRY (NUCLEAR CHEMISTRY :explode: (when P + N get involved in…
NUCLEAR CHEMISTRY
NUCLEAR CHEMISTRY
:explode:
when P + N get involved in the reaction, their no change, huge amount of energy release
changes nucleus of atom, change its nature
When changes happen to the nucleus of an atom
ISOTOPES
:fire:
same no. of proton, different no. of neutron
TRANSMUTATION
:recycle:
changing one element to another
STABILITY
:forbidden:
atom stable when their outermost e- orbitals are full of e-
certain combination of P + n make nucleus more stable
RADIOACTIVITY
:radioactive_sign:
Decomposition of a nucleus to form different nucleus
HALF LIFE
:bulb:
Time taken for exactly one-half of a radioactive sample to decay
can calculate how much of a sample will be gone in a given amount of time
RADIOACTIVE DECAY
:warning:
Occur when nucleus has higher energy level than more stable version
ALPHA DECAY
low energy
Stopped by sheet of paper/cloth
BETA DECAY
High energy than alpha decay
Stopped by sheet of aluminium foil/ top layer of skin
GAMMA DECAY
Release electromagnetic radiation
No mass (no p + n+ e)
Release when e- transition from an unstable excited state, to more stable state
Gamma ray can penetrate skin, cell membrane and organelles
SPONTANEOUS FISSION
:no_entry:
Occur when an atom simply break into 2 smaller atom without any outside help
