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What is electron configurations?

Updated: 8/10/2023
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15y ago

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The electron configuration for an element is the arrangement of electrons in the orbits (or shells) of a neutral atom. Shells closer to the nucleus have higher binding energy.

For example, there are eleven electrons in a sodium atom (atomic number 11). Scientists have measured the quantities of energy needed to remove these electrons one by one from a sodium atom. It is quite easy to remove the the first electron. The next 8 are difficult to remove. Finally, it becomes really hard to remove the last two electrons, which are held very powerully because they are the closest to the nucleus.

This is just a common representation of electron configuration.

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Example : For an atom of oxygen, there are 8 protons and 8 electrons. The first 2 electrons are in the subshell designated 1s, which can contain 2 electrons. The next 2 are in the shell designated 2s, which can also contain 2 electrons. The final 4 are in the 2p shell, which can contain up to 6 electrons. So the configuration is written as :

1s2 2s2 2p4

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6y ago
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15y ago

The ways electrons are arranged around the nuclei of atoms in various obitals are called electron configurations.

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Electronic configuration is the arrangement of electrons in the energy levels of an atom.

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The electron configuration of an atom is the particular distribution of electrons among available shells

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How do you write out the electron configurations of solutions?

Solutions are mixtures of one or more solutes dissolved in a solvent. They do not have electron configurations. Only atoms and ions have electron configurations.


What are the examples of elements with predictable electron configurations?

All of the representative elements (s and p block) have predictable electron configurations. However, many of the transition elements have electron configurations that are not predicted by the rules for determining electron configuration.


The elements Li and F combine to form an ionic compound The electron configurations in this compound are the same as the electron configurations of atoms in which group?

Group 18


What have stable electron configurations?

any time there are as many electrons and protons and they fill each orbital optimally.


How are noble gas configurations different from electron configurations?

The externall shell of electrons is completely filled.


What are the full electron configurations for strontium Z 38?

The electron configuration of strontium is 1s22s22p63s23p63d104s24p65s2.


Which elements have electron configurations that end in ns2np5?

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Which elements have electron configurations that end in ns 2 and np 5?

The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.


Which elements have electron configurations that end in ns 2 np 5?

The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.


What groups have electron configurations that end with 1 electron in the P-Block?

group 13 or IIIA


Is true about the electron configurations of the representative elements?

Each neutral atom has a specific electron cofiguration.


The electron configurations for sulfur and mercury?

The electron configuration for sulfur is [Ne]3s2.3p4.The electron configuration for mercury is [Xe]4f14.5d10.6s2.