Answer: electron
Explanation:
An atom is made up of subatomic particles: proton, neutron and electron.
Proton and neutrons are found in the nucleus of atoms while electron is found outside the nucleus.
Thus,the only particle not found in the nucleus is electron.
Magma that squeezes into a horizontal crack is called a Sill. Magma that squeezes into a vertical crack is called a Dike.
<span>Cancer Cells Have Altered Energy Metabolism
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Cancer Cells Contain Abnormal Nuclei
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