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89. Qaysi davr va guruh elementlarining metallmaslik hususiyati kuchliroq. A) 3-davr, VI guruh B) 3-davr, IV guruh C) 2-davr, V guruh D) 2-davr, VII guruh

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91. Elementlarni ularning metallmaslik xossalari ortib borish tartibida joylashtiring. 1) magniy; 2) alyuminiy; 3) kremniy; 4) fosfor; 5) oltingugurt; 6) xlor; 7) natriy A) 7,1,2,3,4,5,6 B) 7,1,2,4,3,5,6 C) 7,2,1,4,3,5,6 D) 7,2,1,3,4,5,6