Examlex
A(n) ________ or hive is a small, raised, round area on the skin that sometimes itches.
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.
Element
A pure chemical substance consisting of one type of atom, distinguished by its atomic number, which is the number of protons in its nucleus.
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