Ground State Electron Configuration

eg: Consider a carbon atom whose electron configuration is the following. The total energy of the electrons in this carbon atom can not be lowered by transfering one or more electrons to different orbitals. Therefore, this carbon atom is a ground-state atom.

How do you write electron configuration?

When writing an electron configuration, first write the energy level (the period), then the subshell to be filled and the superscript, which is the number of electrons in that subshell. The total number of electrons is the atomic number, Z.

Which two elements have the same ground state electron configuration?

Answer and Explanation: (d) Cl and Ar have the same ground-state electron configuration.

What is the ground state electron configuration of chlorine?

The neutral atom chlorine (Z=17), for instance has 17 electrons. Therefore, its ground state electronic configuration can be written as 1s22s22p63s23p5. The chloride ion (Cl-), on the other hand, has an additional electron for a total of 18 electrons.

Which element has the electron configuration of 2 7?

Therefore, the atomic number of this element is 17 and the element is chlorine. It would be chemically similar to F(9) with configuration as 2, 7.

Which choice lists two elements with ground state electron configurations that are well known exceptions to the Aufbau principle?

Elements such as copper and chromium are exceptions because their electrons fill and half-fill two subshells, with some electrons in the higher energy level shells.

Which is larger Ar or Cl −?

Actually, Cl has a greater atomic radius than Ar because of the greater attraction from the nucleus in Ar.

Do different atoms have different ground states?

The ground state describes the lowest possible energy that an atom can have. Atoms may occupy different energy states. The energy states are discrete, i.e. they occur at specific values only.