The n = 1 shell of an atom contains a maximum of: two electrons seven electrons eight electrons eleven electrons

The n = 1 shell can contain a maximum of two electrons.

Explanation:

An atom is made up of electrons, protons and neutrons. Both protons and neutrons are located in the nucleus of the atom, while electrons are in the shell/s. The shell of an atom is the orbit on which the electrons revolve around the nucleus. The number of shells in an atom extends from the first, n =1, to infinity, n = ∞, depending on the number of electrons in the given atom.

The first shell, n =1, is the ground state and can only contain a maximum of 2 electrons.

Generally, the number of electrons in a shell can be determined by the use of this formula:

                    2 ×

where n is the number of shell required.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.