2. pisana provjera znanja - Kemija (Elektroni u atomu i PSE)
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Mirela Pavic
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14 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Koliko podljusaka, orbitala i elektrona sadrži P ljuska?
5 podljusaka, 50 orbitala, 50 elektrona
5 podljusaka, 25 orbitala, 50 elektrona
6 podljusaka, 17 orbitala, 36 elektrona
6 podljusaka, 36 orbitala, 72 elektrona
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Kemijski element A ima slična kemijska svojstva kao dušik. Broj protona atoma elementa A veći je od broja protona atoma argona, ali manji od broja protona atoma kriptona. Naziv kemijskoga elementa A je:
selenij
arsen
brom
germanij
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Elektronska konfiguracija treće ljuske Fe3+ iona je:
4s2
4s23d6
3s23p63d4
3s23p63d5
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Koja je elektronska konfiguracija valentne ljuske Cu+ iona?
4s23d9
4s13d10
3d10
3d9
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koja od navedenih čestica ima najmanji polumjer?
Al3+
Mg2+
Na+
Na
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Odaberi niz u kojem su jedinke Ar, K+, Cl-, Ca2+ i S2- pravilno poredani s obzirom na porast radijusa njihovih atoma.
S2-, Cl-, Ar, Ca2+ i K+
Ca2+, K+, Ar, Cl- i S2-
Ar, K+, Cl-, Ca2+ i S2-
Ca2+, S2-, K+, Cl- i Ar
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Raspon koeficijenata elektronegativnosti može biti između:
0.7 i 1.9
0.8 i 1.9
0.7 i 4.0
0.8 i 4.0
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