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8-sinf Kimyo olimpiada №3

Yanvar 3, 2023

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8-sinf Kimyo olimpiada №3

30.12.2022 yil oo.uzedu.uz

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Qaysi atomda juftlashmagan elektronlar ko’p?

O

Br

Ni

Mn

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Quyidagi ifodalardan qaysilari davriy jadvaldagi elementlar uchun noto’g’ri. 1) guruh bo’ylab elektromanfiylik qiymati ortadi 2) davr bo’ylab elektronga moyillik kamayadi 3) guruh bo’ylab ionlanish potensiali kamayadi. 4) davr bo’ylab metallik xossasi kamayadi

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