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  • The most stable configuration is when the entire shell is full (noble gas configuration). Next best is when a specific orbital (s, p, d, f, etc.) is completely full, even if the shell is not complete. Next best after that is when a specific orbital is exactly half full.
  • All atoms would like to attain electron configurations like noble gases, i.e., have completed outer shells. Atoms can form stable electron configurations like noble gases by losing electrons, gaining electrons and sharing electrons. For a stable configuration each atom must fill its outer energy level. In the case of noble gases there will be eight electrons in the valence (outer most) shell (with the exception of He which has two electrons). Atoms that have 1, 2 or 3 electrons in their outer levels will tend to lose them in interactions with atoms that have 5, 6 or 7 electrons in their outer levels. Atoms that have 5, 6 or 7 electrons in their outer levels will tend to gain electrons from atoms with 1, 2 or 3 electrons in their outer levels. Atoms that have 4 electrons in the outer most energy level will tend neither to totally lose nor totally gain electrons during interactions and thus they tend to share electrons.
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Elements with complete outer shells?

Elements with complete outer shells have a full valence shell of electrons and are stable. This configuration is typically achieved by having eight electrons in the outer shell (known as the octet rule) or two electrons for the first shell. These elements are generally inert or have low reactivity due to their stable electron configuration.


What does oxygen need to do in order to to achieve a stable electron configuration?

Oxygen needs to gain two electrons to achieve a stable electron configuration, which would give it a full outer shell of eight electrons (octet). This can be achieved through forming chemical bonds with other elements.


Is sodium's outer shell stable?

No, sodium's outer shell is not stable because it only has one electron in its outer shell. Sodium will readily react with other elements to achieve a stable electron configuration by losing this electron.


What elements forms anions and why 1Silver 2Strontium 3Tin 4Iodine?

Silver forms anions by losing one electron to achieve a stable electron configuration. Strontium typically forms cations by losing two electrons to achieve a stable electron configuration. Tin can form both cations and anions, depending on the reaction conditions. Iodine often forms anions by gaining one electron to achieve a stable electron configuration.


How many electrons does the group 7A need to gain?

Group 7A elements (also known as Group 17) typically need to gain one electron to achieve a stable octet configuration in their outer shell. This allows them to reach a stable electron configuration similar to the noble gases.

Related Questions

What group of elements have stable electron confoguration?

The group of elements that have a stable electron configuration are the noble gases.


Is a duplet electron considered stable?

A duplet electron configuration is considered stable, as it corresponds to having two electrons in the outer energy level, which is the most stable configuration for elements in the first period. Elements like helium achieve a duplet electron configuration and are relatively stable due to their full outermost energy level.


What is important about the electron configuration of the noble gases?

By acquiring noble gas configuration elements become stable .


How many valance electrons do most elements need to have a stable electron configuration?

8 valance electron


Alkali metals lose an electron to form a stable octet. true or false?

False. Alkali metals lose one electron to form a stable electron configuration with a full outer shell of electrons, which is the stable electron configuration for these elements.


What elements have the highest IE?

Helium has the highest ionization energy (IE) among all the elements, as it has a fully stable electron configuration that resists losing an electron. Other elements with high ionization energies include neon, followed by elements in the noble gas group due to their stable electronic configuration.


Which group of elements most readily combines with group 17 elements?

Group 1 metals, such as sodium and potassium, readily combine with group 17 elements (halogens) to form salts. These metals have one electron in their outermost shell, which they can easily lose to achieve a stable electron configuration, while halogens are one electron short of a stable configuration and readily accept an electron to form a stable ion.


What is the most reactive group of elements?

It is in Group 17 that you will find the most reactive elements. These elements all lack only one electron from having that "magic" electron configuration of the inert gases. That makes these elements very "hungry" to get that "last electron" so their electron structures become more stable.


What is a nobel gass configuration?

A noble gas configuration refers to the electron configuration of a noble gas element, which is very stable and does not easily react with other elements. It typically involves having a full outer electron shell, with 8 electrons for most elements except helium which has 2 electrons. Elements strive to achieve a noble gas configuration through gaining, losing, or sharing electrons in chemical reactions.


What is the formula of the ion formed when sodium achieves a stable electron configuration?

Na+ is the formula of the ion formed when sodium achieves a stable electron configuration.


Elements with complete outer shells?

Elements with complete outer shells have a full valence shell of electrons and are stable. This configuration is typically achieved by having eight electrons in the outer shell (known as the octet rule) or two electrons for the first shell. These elements are generally inert or have low reactivity due to their stable electron configuration.


What is the definition of noble gas configuration?

"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of nitrogen is [He]2s22p3