Arrange the first, second, and third energy field electrons of the...

Arrange the first, second, and third energy field electrons of the...
Arrange the first, second, and third energy field electrons of the...
Arrange the first, second, and third energy field electrons of the sodium atom from the inside out? Where the sodium atom is one of the elements in the periodic table, and the sodium atom can be represented according to the model of the atom and the distribution of its electrons on energy levels in ways that will be mentioned in the following lines.

what is it sodium atom

Sodium (Na) is a chemical element of the alkali metal group of the periodic table, and sodium is a very soft, silvery-white metal, and sodium is the most common alkali metal and the sixth most abundant element on Earth, making up 2.8 percent of the Earth’s crust. It is found abundantly in nature in compounds, especially the common salt sodium chloride (NaCl), which forms the mineral halite and makes up about 80 percent of the dissolved components of seawater.
Since sodium is highly reactive it is never found in the free state in the earth’s crust. There are huge deposits of rock salt in different parts of the world. The sodium content in the sea is about 1.05 percent. Sodium has also been identified in both atomic and ionic forms in Spectra of stars, including the Sun and the interstellar medium. Analysis of meteorites indicates that the silicate material contained in it has an average content of about 4.6 atoms of sodium per 100 atoms of silicon.

Arrange the first, second, and third energy field electrons of the sodium atom from the inside out?

Arrange the first, second, and third energy field electrons of the sodium atom from the inside out؟ The answer is that a sodium atom contains 11 electrons revolving around a nucleus in 3 energy levels, there are two electrons in the lowest level, then in the second level there are eight electrons, and then one electron in the third level.

The arrangement of electrons in an atom

The electron arrangement of all atoms can be found in the model of the atom, where all electrons are arranged in energy levels, and these energy levels can only contain a certain number of electrons, the first energy level (closest to the nucleus) can contain a maximum of two electrons with a Others hold up to a maximum of 8 electrons, sodium has 11 electrons. The first two fill the innermost energy level. The second energy level is also full, holding eight electrons and one electron remaining in the outer energy level. The atomic number is the number of outer electrons that give the element its chemical properties, which is why elements in the same group of the periodic table have similar properties.[1]

The mass number of a sodium atom

The atomic number of an element tells how many protons the element has, since atoms are neutral, and sodium atoms must also have 11 negative electrons to cancel out the 11 positive protons, and the mass number is at the top left of the element symbol in the periodic table, and sodium contains Mass number 23, and as it is known that the atomic number of sodium is 11, which indicates that sodium contains 11 protons and because it is neutral it contains 11 electrons, and the mass number of the element indicates the number of protons and neutrons in an atom (the two particles that have a measurable mass), and the mass number of sodium It is 23 amu, since sodium has 11 protons, the number of neutrons should be 2311 = 12 neutrons.[1]

In the end, a question was answered Arrange the first, second, and third energy field electrons of the sodium atom from the inside out? It was found that these electrons in sodium are 11 and they are divided according to three levels.

the reviewer

  1. ^
    bbc.co.uk , Atomic structure , 18/1/2022

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