62. (V18-1-24) A+.-r-v ^ -«rrr-ntr. zar;achdi-.«rr,ii<g (p *- e - n) yigln.jrji 116 ga teng. Neytroniar soni protoniar sonidan 8 taga kop. Elementni toping.
A) Se. Ð’) Kr
C) Sr
D) Sr
A+.-r-v ^ -«rrr-ntr. zar;achdi-.«rr,ii<g (p *- e - n) yigln.jrji 11
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Ñáîðíèê: Kimyo
Ïàðàãðàô:
6. D.l. Mendeleyevning Davriy qonuni. Elementlarning davriy sistemasi
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