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Katta va kichik davr elementlari

Authored by hayot m

Chemistry

8th Grade

Used 2+ times

Katta va kichik davr elementlari
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Quyidagi davrlardan qaysi biri kichik davr hisoblanadi?

4-davr

3-davr

5-davr

6-davr

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. Katta davrlar nechta qatorni o‘z ichiga oladi?

1

2

3

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. Quyidagi elementlardan qaysi biri 4-davrda joylashgan d-element hisoblanadi?

K (kaliy)


Ca (kalsiy)

Sc (skandiy)

Kr (kripton)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. 1-, 2-, 3-davrlarda nechta element bor?

2, 8, 8

2, 8, 8,2

2, 8, 8, 6

2, 8, 8, 18

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Quyidagi ta’riflardan qaysi biri “guruh” atamasini to‘g‘ri ifodalaydi?

Elementlarning gorizontal qatori

O‘xshash xossalarga ega bo‘lgan elementlarning vertikal qatori

Metallik xossasi ortib boruvchi elementlar ketma-ketligi

Elektron pog‘onalar soni teng bo‘lgan elementlar to‘plami

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vodorod nega I va VII guruhga mansub bo‘lishi mumkin?

Yadrodagi protonlar soni 1 bo‘lgani uchun

Metallik xossasi juda kuchli bo‘lgani uchun

Inert gazlar bilan o‘xshash bo‘lgani uchun

Oksidida valentligi 1, tashqi qavatida 1 elektron bo‘lgani uchun

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quyidagi elementlar qaysi tartibda metallik xossasining kuchayib borishini ko‘rsatadi?

Li → Na → K → Rb → Cs

F → Cl → Br → I

O → N → C → B

Ne → Ar → Kr → Xe

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