Examlex
What is an operational database and a data warehouse? How are they different?
Protons
Positively charged subatomic particles found in the nucleus of an atom, contributing to the atom's mass and defining the element.
Zinc
A chemical element with the symbol Zn and atomic number 30; it is a slightly brittle metal at room temperature and has a variety of uses, from galvanization to dietary supplements.
Isotope
An isotope is a variant of a particular chemical element, which differs in neutron number, while retaining the same number of protons.
Neutrons
Subatomic particles found in the nucleus of an atom, having no electrical charge and a mass slightly greater than that of a proton.
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