Carbon has four electrons in its valence (outermost) shell orbital. So, it can neither accept nor gain four electrons. So it completes its octet is by sharing of electrons. Thus, carbon forms covalent bonds to complete its octet or attain the noble gas configuration.
How do atoms attain noble configuration?
Elements forming covalent compounds achieve noble gas configuration by sharing electrons within the atoms, unlike ionic compounds which achieve the noble gas configuration either by gaining or losing electrons from the outermost electron shell.
What is the noble gas configuration?
A noble gas configuration of an atom consists of the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons. So for sodium, we make the substitution of [Ne] for the 1s22s22p6 part of the configuration. Sodium’s noble gas configuration becomes [Ne]3s1.
How do atoms acquire stable noble gas configuration?
A stable arrangement is attended when the atom is surrounded by eight electrons. This octet can be made up by own electrons and some electrons which are shared. Thus, an atom continues to form bonds until an octet of electrons is made.Why do elements have a tendency to achieve noble gas configuration?
The Reason Why Elements Tend to Acquire Noble Gas Configuration. The noble gases possess practically no tendency to form chemical bonds and to enter chemical combination. This implies that these gases are stable. … Hence, the valence shell in helium is complete and helium possesses a stable electron configuration.
What are noble gases give a reason why noble gases have stable electronic configuration?
Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
How do these elements achieve stability similar to the noble gases?
They are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.
Why elements other than noble gases have unstable electronic configuration?
The atoms of elements other than noble gases are unstable because: They have unstable electronic configuration, i.e. their outermost shell is incomplete. They can lose, gain or share electrons and are chemically reactive.Does noble gases have stable electronic configuration?
Noble gases have stable electronic configuration as their octet or duplet is complete and also they are having maximum number of valence electron in their outer most shell.
Why do noble gases conduct electricity?It sounds odd, but noble gases DO conduct electricity, though nowhere near as well as metals or some nonmetallic conductors. This is partly because their atoms do not react with each other, and so their electronic clouds remain totally bound to their nuclei, allowing free electrons to pass by freely.
Article first time published onWhat is the electron configuration of a stable atom?
Elements that have the same number of valence electrons often have similar chemical properties. Electron configurations can also predict stability. An atom is at its most stable (and therefore unreactive) when all its orbitals are full. The most stable configurations are the ones that have full energy levels.
What causes a stable electron configuration?
Elements in other groups have partially filled valence shells and gain or lose electrons to achieve a stable electron configuration. An atom may give, take, or share electrons with another atom to achieve a full valence shell, the most stable electron configuration.
What is the difference between stable and unstable electronic configuration?
Stable electronic configuration: Atoms having octet (8 electrons) or duplet 2 electrons in outermost shell is stable electronic configuration 2 electrons in K shell the valence shell. … Unstable electronic configuration: “Atoms of the element which do not have their valence shells completely filled.”
Which element has no stable electronic configuration?
Hydrogen. Hydrogen is the simplest element in the periodic table and consists of a single proton and a single electron. The single electron is located in the 1s shell, which can possess two electrons. The hydrogen electronic configuration is therefore not stable.
How does each element attain their stability?
To achieve greater stability, atoms will tend to completely fill their outer shells and will bond with other elements to accomplish this goal by sharing electrons, accepting electrons from another atom, or donating electrons to another atom.
What happens when electricity passes through a noble gas?
Colors of Noble Gases The different gases glow when an electric current is passed through them. Many of these gases are used in displays because of their chemical inertness. They are stable and will not react with other materials in the system.
What happens to noble gases when electricity flows through them?
All noble gases conduct electricity, light up when a current runs through them, and are odorless, colorless and monatomic (exist as individual atoms). Due to its relative inertness, neon does not form any known stable compounds in nature, according to Chemicool.
How do you write the electron configuration for noble gases?
Find the noble gas preceding the element on the periodic table. Write the noble gas configuration by writing the noble gas core, followed by the valence electrons. A noble gas core is the noble gas element symbol enclosed in brackets: [He], [Ne], [Ar], [Kr], [Xe], or [Rn].
What elements will lose an electron to attain noble gas configuration?
Element NameSymbolNoble Gas Electron ConfigurationSodiumNa[Ne]3s1MagnesiumMg[Ne]3s2AluminumAl[Ne]3s23p1SiliconSi[Ne]3s23p2
What is the difference between atom and molecule?
Atom refers to the smallest constituent unit of a chemical element. Molecules refer to a group of two or more atoms that are held together due to chemical bonds.
What happens when an atom absorb energy?
An atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption. The electron absorbs the energy and jumps to a higher energy level. In the reverse process, emission, the electron returns to the ground state by releasing the extra energy it absorbed.
Which has stable electronic configuration ni2+ or fe3+?
The electronic configuration pf Fe+3 = [Ar] 3d5. So, as we know that half filled subshells are more stable, Thus we can see that Fe+3 ion will be more stable than Ni+2 , because of more number of exchanges in Half filled subshell.
Is carbon stable or unstable?
Carbon-12 is stable, meaning it never undergoes radioactive decay. Carbon-14 is unstable and undergoes radioactive decay with a half-life of about 5,730 years (meaning that half of the material will be gone after 5,730 years).
Is helium stable or unstable?
Helium atoms, on the other hand, have two protons and two electrons in the lowest energy level. The lowest energy level is filled with its maximum number of electrons. This is a very stable arrangement, and helium in consequence is an inert gas with few chemical properties.
How can non metal atoms achieve noble gas stability?
Non-metals tend to gain electrons to attain Noble Gas configurations. The have relatively high Electron affinities and high Ionization energies. Metals tend to lose electrons and non-metals tend to gain electrons, so in reactions involving these two groups, there is electron transfer from the metal to the non-metal.
