Question

State Mendeleev's Periodic Law.


BY Why did Mendeleev leave some gaps in the Periodic table?
BOX

If the letter 'R' was used to represent any of the elements in the
group, then the hydride and oxide of carbon would respectively be
represented as
(i) RH4, RO
() RH4, ROZ
(iii) RH2, RO,
(iv) RH,, RO


Isotopes are

(i) Atoms of an element with similar chemical properties but
different atomic masses.

(ii)Atoms of different elements with similar chemical properties
but different atomic masses.


(iii)Atoms of an element with different chemical properties but
same atomic masses.


(iv)Atoms of different elements with different chemical
properties but same atomic masses.​

Answer 1

Answer:

yes that's true

the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.

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