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What is the electron configuration of Ga?

Answer
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Hint: We need to know that gallium is an element having atomic symbol Ga, and atomic number of 31. It belongs to group 13 and period 4. It comes under the p block element that has all metal, nonmetals and metalloids. Out of which gallium comes under the metalloid category that has characteristics of both metal and non-metal.

Complete answer:
As we know, the atomic number of gallium is 31. It is easy to find the electronic configuration of any element when we know its atomic number. Gallium has 31 protons and 31 electrons. Gallium has one electron more to come to stable electronic configuration. On losing one electron gallium attains stable electronic configuration.
Electronic configuration of gallium can be represented as:
Ga:[Ar] 3d104s24p1
In numerical order electronic configuration can be represented as:
1s22s22p63s23p63d104s24p1
Properties of gallium can be represented below:
1. Gallium is a soft, silvery metal just like aluminium.
2. Boiling point of gallium is usually high, thus it is used in thermometers.
3. Since it is a semiconductor, it has particular properties that make it very versatile. It has important uses in Blu-ray technology, mobile phones, blue and green LEDs and pressure sensors for touch switches.
4. It is also used in red LEDs (light emitting diodes)

Note:
We have to know that elemental gallium is not found in nature, but it is easily obtained by smelting. Very pure gallium is a silvery blue metal that fractures conchoidally like glass. Gallium liquid expands by 3.10% when it solidifies; therefore, it should not be stored in glass or metal containers because the container may rupture when the gallium changes state.