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10The nucleus of an atom is made up of protons and neutrons.
If the neutron to proton ratio is more than 1, the nucleus may become unstable.
Atoms with higher atomic numbers are generally more stable.
Instability increases with increase in atomic number.
Unstable nuclei try to become stable by emitting radiation.
Radioactive emission occurs only in stable atoms.
Neutrons have no charge.
Protons are negatively charged particles.
Nuclear stability depends on neutron-proton ratio.
Radioactive emission is the release of energetic radiation.
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The nucleus of an atom contains:
A nucleus becomes unstable when:
Instability increases with:
Unstable nuclei emit:
Radioactive emission helps atoms to become:
Neutrons are:
Protons are:
Higher atomic number elements are generally:
Nuclear stability depends mainly on:
When instability occurs, atoms emit:
The nucleus is formed by ______ and neutrons.
If the neutron to proton ratio is greater than ______, the nucleus becomes unstable.
Instability increases with increasing ______ number.
Unstable atoms emit ______ radiation.
The process of emitting radiation is called ______ emission.
Protons carry a ______ charge.
Neutrons have ______ charge.
Higher atomic number elements are generally ______.
Stable nuclei have balanced ______ ratio.
Nuclear stability depends mainly on ______ and proton ratio.