Rasaenik element
Chemical elementuu chij hae jon ki khaali el rakam keatomse banaa hae. Atomproton,neutronaurelectronse banaa hae. Ek atom me jetnaa proton hae keatomic numberbolaa jaae hae. Jaise ki koi atom jisme 6 proton hae, rasaenik elementcarbonhae aur sab atom jisme 92 proton hae,uraniumke atom hae.
Ek element ke sab atom me ekke ginti ke neutron nai rahe ke jaruri hae. Ek element ke atom ke jab ekke ginti ke neutron nai rahe hae tab iskeisotopebolaa jaae hae.
Sab chij element se bane hae. Jab ek chij me ek rakam se jaada atom hae tab iskecompound,nai tomixturebola jaae hae. Ek compound ke sab se chhota bhaag kemoleculebola jaae hae.
Rasanik vigyan(Chemistry) me 118 rasenik element ke jaan ajjae hae, jisme se 92 ke nature me paawa jaae hae, aur baaki ke laboratory me banaawa gais hae. Insaan ke dehin me 26 element hae.[1]
Rasaenik element keperiodic tableme dekhaawa jaae hae, jisse ek element ke property ke duusra se compare karaa jaae sake hae.
Duusra panna[badlo|source ke badlo]
References[badlo|source ke badlo]
- ↑Ryan, Lawrie (2001).Chemistry for You: National Curriculum Edition for GCSE(2 ed.). Nelson Thornes.ISBN9780748762347.https://archive.org/details/chemistryforyou0000ryan.