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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.
What are monoatomic molecules?
Monoatomic means to have one atom. An anion is any ion that has a negative charge. An example of a monoatomic ion is S2- . Sulfur is the only atom in the atom, and it has a negative two charge.
What did mendeleev discover?
Dmitri Mendeleev discovered the periodic law and created the periodic table of elements. He arranged elements by atomic mass and properties, leaving gaps for undiscovered elements which he later predicted and found to exist. This work laid the foundation for modern chemistry.
What do the long dashes represent on mendeleev's periodic table?
The long dashes on Mendeleev's periodic table represent gaps where elements had not yet been discovered but were predicted to exist based on the periodic pattern of elements. Mendeleev used these gaps to accurately predict the properties of the missing elements, leading to the discovery of new elements.
What is element A on periodic chart?
Element A does not exist on the periodic table. The elements on the periodic table are represented by their respective chemical symbols, such as H for hydrogen, O for oxygen, or Fe for iron.
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.
How many elements are found in the periodic table of elements?
There are a total of 118 elements known to exist on the periodic table.
What families have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
Does Na and Hg in vapour state exist as monoatomic molecule?
yes they exsist as monoatomic molecule in vapour state
What element family have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
What are monoatomic molecules?
Monoatomic means to have one atom. An anion is any ion that has a negative charge. An example of a monoatomic ion is S2- . Sulfur is the only atom in the atom, and it has a negative two charge.
Does neon exist in monoatomic gas at standard temperature and pressure?
No, neon exists as a monatomic gas at standard temperature and pressure. It does not readily form diatomic molecules or other larger clusters like some other elements.
Are most of the periodic table isotopes?
No most of them are not isotopes. Few elements exist as isotopes.
What number is mathane on the periodic table?
First of all it is a compound made of different elements, hence it cannot exist in periodic table. Periodic table is composed only of pure elements not in any combined form.
What particles exist within an atom?
The nucleus consisting of Protons and Neutrons surrounded by one to several "shells" of orbiting electrons. The numbers of protons and neutrons for each element can be found in the periodic table of elements.
Why do individual isotopes not appear on the periodic table?
In the periodic table only the chemical elements appear; but tables for isotopes also exist.
A verticle column in the periodic table?
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.
