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What elements exist as single atoms not bonded to other atoms?
Noble gases such as helium, neon, argon, krypton, and xenon exist as single atoms not bonded to other atoms. They are stable with a full outer electron shell, making them unreactive and existing as individual atoms in their natural state.
What is metastable state of plasma?
Excited state of an atom, nucleus, or other system that has a longer lifetime than the ordinary excited states and generally has a shorter lifetime than the ground state. It can be considered a temporary energy trap or a somewhat stable intermediate stage of a system of which the energy may be lost in discrete amounts. The many photochemical reactions of mercury are a result of the metastable state of mercury atoms, and radiation from metastable oxygen atoms accounts for the characteristic green colour of the aurora borealis and aurora australis.
Is all the atoms cannot exist in free state?
Most atoms are found in chemical compounds or bonded to other atoms, as opposed to existing in a free state. Atoms are constantly interacting with other atoms through chemical bonds to form molecules. However, certain noble gases, such as helium and neon, can exist in a relatively stable and unreactive free state.
That Na and Hg in vapour state exist as monoatomic molecules?
True. In their vapor state, both Na and Hg exist as monoatomic molecules, with Na being represented as Na and Hg as Hg. This is because in their gaseous form, both elements exist as individual atoms rather than diatomic molecules.
Why elements and all compound exist as molecules?
Elements can exist as molecules when they combine with other elements to form compounds due to the sharing or transfer of electrons, creating stable structures. These molecules are held together by chemical bonds, which can be covalent, ionic, or metallic, depending on the types of elements involved. The formation of molecules allows the elements to achieve a more stable configuration, following the octet rule and minimizing their energy state.
In what state of matter do atoms of all elements exist?
Atoms of all elements exist in the state of matter known as the gas phase.
Why is all compounds molecules?
All elements and compounds are present in molecular state. They cannot be found as individual atoms. Atoms cannot exist in free state.
Is all molecules compound?
All elements and compounds are present in molecular state. They cannot be found as individual atoms. Atoms cannot exist in free state.
What is the definition of Metastable state in laser?
In lasers, a metastable state is a state in which atoms or molecules are in an excited state with a longer-than-normal lifetime before emitting a photon and returning to a lower energy state. This allows for the accumulation of a population inversion necessary for laser action.
Why atoms of most of the elements do not exist independently?
Atoms of most elements do not exist independently because they are more stable and energetically favorable when they form chemical bonds with other atoms. These bonds allow atoms to achieve a full outer electron shell and attain a lower energy state. This results in the formation of molecules or compounds rather than isolated atoms.
What is metastable zone width?
The metastable zone width is the range of temperatures within which a substance can exist in a metastable state, meaning it is supercooled or supersaturated and undergoing phase transformation. It is important in processes like crystallization and pharmaceutical formulation to control the conditions for desired product properties.
What elements exist as single atoms not bonded to other atoms?
Noble gases such as helium, neon, argon, krypton, and xenon exist as single atoms not bonded to other atoms. They are stable with a full outer electron shell, making them unreactive and existing as individual atoms in their natural state.
How are atoms related to element's?
Atoms are related to elements because atoms are what comprise elements. An atom still has atoms no matter what state it is in.
What is metastable state of plasma?
Excited state of an atom, nucleus, or other system that has a longer lifetime than the ordinary excited states and generally has a shorter lifetime than the ground state. It can be considered a temporary energy trap or a somewhat stable intermediate stage of a system of which the energy may be lost in discrete amounts. The many photochemical reactions of mercury are a result of the metastable state of mercury atoms, and radiation from metastable oxygen atoms accounts for the characteristic green colour of the aurora borealis and aurora australis.
Is all the atoms cannot exist in free state?
Most atoms are found in chemical compounds or bonded to other atoms, as opposed to existing in a free state. Atoms are constantly interacting with other atoms through chemical bonds to form molecules. However, certain noble gases, such as helium and neon, can exist in a relatively stable and unreactive free state.
Why does ionization take place in gaseous atoms?
Because in gaseous state all the atoms are comparable. In natural state some atoms (Elements) exist in solid state some in liquid and some in gaseous state.
In which state of matter do most elements exist?
Most elements exist in the state of matter known as solids at room temperature and pressure. Some elements can also exist as liquids or gases depending on the conditions.
