The electron configuration for gallium is 1s22s22p6<3s23p63d104s24p1, according to the Thomas Jefferson National Accelerator Facility Office of Science Education. Gallium is a metallic element with an atomic weight of 69.723 amu.
A neutral atom of gallium has 31 electrons. The negative charge of each electron cancels out the positive charges of the 31 protons, giving a neutral gallium atom a net charge of zero.
Gallium's electron configuration shows how these 31 electrons are arranged. One atom of gallium has two electrons in the first energy level, eight in the second energy level, 18 in the third energy level and three in the fourth energy level.
The 4s2 and 4p1 parts of the configuration show how many valence electrons are in a gallium atom. The outer shell has a total of three electrons -- two in the s orbital and one in the p orbital. This means the atom has three valence electrons.
Gallium is found in thermometers that are used to measure high temperatures. The element is also used to create metal alloys and produce transistors. Gallium is in group 13 and period four of the Periodic Table of the Elements. Groups are the vertical columns of the table, while periods are the horizontal rows. At room temperature, gallium is a solid.Learn More
The electron configuration for strontium is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2, according to the Jefferson Lab website. The noble gas configuration of this element is [Kr] 5s2, with [Kr] representing the electron configuration of krypton.Full Answer >
The electron configuration for Fe2+ is 1s2 2s2 2p6 3s2 3p6 3d6. Due to its plus two charge, the electron configuration for Fe2+ contains two fewer electrons than the electron configuration for Fe, which is 1s2 2s2 2p6 3s2 3p6 3d6 4s2.Full Answer >
In its shortest form, the electron configuration of Lawrencium is [Rn] 5f14 6d1 7s2. Simplifying any electron configuration requires the knowledge of how an atom's orbital sets are determined.Full Answer >
Potassium has an electron configuration of 1s22s22p63s23p64s1. The noble gas configuration of this element is [Ar] 4s1. The [Ar] in this configuration represents the electron configuration for argon.Full Answer >