सेलेनियम

is lekh ka punarikshan evan sampadan hona avashyak hai. ap isamean sahayata kar sakate haian. "sujhav"

seleniyam (aangrezi:Selenium) avart sarani ka ek tatv hai. seleniyam ka pratik Se, paramanu kramaank 34, paramanu bhar 78.96, galanaank 221° sean., kvathanaank 685° sean. hota hai. seleniyam ka ilektr aaunik vinyas 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁴ hota hai.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

tika tippani aur sandarbh

a a i ee u oo e ai o au aan k kh g gh n ch chh j jh n t th d dh n t th d dh n p ph b bh m y r l v sh sh s h ksh tr jn rri rri aau shr aah