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Area around the nucleus of an atom where the atom's electrons are most likely to be found.
Isotope with an unstable nucleus that becomes more stable by spontaneously emitting energy and particles.
The time required for one half of the atoms of a radioisotope to emit radiation an decay products.
A substance formed by chemical union of two or more elements or ingredients in definite proportion by weight.
A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion.
A chemical bond that involves sharing a pair of electrons between atoms in a molecule.
Nonpolar Covalent Bond
A type of covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
Weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms.
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