Problem

An atom consists of a nucleus of protons and neutrons surrounded by a cloud of electrons....

An atom consists of a nucleus of protons and neutrons surrounded by a cloud of electrons. For each atom, the number of protons is the atomic number; atoms with the same atomic number constitute an element. Atoms of a single element that have different numbers of neutrons are called isotopes. Electrons, which determine the chemical behavior of an element, are located about a nucleus in orbitals representing discrete energy levels. No orbital can contain more than two electrons, but many orbitals may have the same energy level, and thus contain electrons with the same energy.

If the number of protons exceeds the number of neutrons, is the charge on the atom positive or negative?

If the number of protons exceeds electrons?

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Solutions For Problems in Chapter 2