Question

निर्देशानुसार वाक्य परिवर्तन कीजिए
1.सच्चरित्र व्यक्ति को सभी चाहते है- (मिश्र वाक्य)
2.हमें चाहिये कि केवल बातें ही न बनाएँ 3.अपितु कुछ करके भी दिखाएँ। (सामान्य वाक्य)
4.यह शाम कितनी सुहावनी है ? (विस्मय बोधक)
5.सत्य की सदा जीत होती है। (प्रश्न वाचक)​

Answer 1

Answer:

block of the periodic table is a set of elements unified by the orbitals their valence electrons or vacancies lie in.[1] The term appears to have been first used by Charles Janet.[2] Each block is named after its characteristic orbital: s-block, p-block, d-block, and f-block.

A long periodic table showing, from left to right: the s-, d-, f-, and p-blocks. The f-block, normally shown as a footnote, here splits the d-block into two. While this splitting is the more common form in the literature, a minority advocates placing the f-block between the s- and d-blocks.[1]

The block names (s, p, d, and f) are derived from the spectroscopic notation for the value of an electron's azimuthal quantum number: shape (0), principal (1), diffuse (2), or fundamental (3). Succeeding notations proceed in alphabetical order, as g, h,