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Nuclear Chem Review

Horizontales
A large nucleus breaks into two medium-sized nuclei
High energy radiation with no mass or charge
Particles or rays whcih excape during decay
Atoms of same element with different mass numbers
Attractive force between neutrons and protons
Escape of particles or rays from an unstable nucleus
Accelerated particles cause a nuclear reaction
The atom before a nuclear decay reaction.
Neutrons overcome the ? between protons
Verticales
___ life, time for 50% to decay
An electron emitted by a radioactive nucleus
Nudlear reaction in the sun
Atoms which are NOT radioactive
Elements #93-118, man-made
Primary attraction between planets and the sun
Positively charged electron
Atoms which will decay by emitting particles or rays
The product of a nuclear decay reaction
Opposites attract, like charges repel
Particles containing 2 protons and 2 neutrons
Spontaneous nuclear change with only one reactant