
S-prvky
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
Michal Hurka
Used 4+ times
FREE Resource
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medzi kovy alkalických zemín nepatrí?
horčík
vápnik
stroncium
bárium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medzi alkalické kovy nepatrí?
Lítium
Sodík
Draslík
Berýlium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El. konfiguráciu 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² má?
Rubídium
Sodík
Vápnik
Horčík
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aké produkty vzniknú pri reakcií sodíka s vodou?
voda a hydroxid sodný
vodík a hydroxid sodný
voda a oxid sodný
voda a peroxid sodný
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na fialovo farbí plameň?
Lítium
Sodík
Draslík
Rubídium
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vyber nesprávne tvrdenie o S1 prvkoch:
majú najmenšie hodnoty elektronegativít v PSP
sú silné oxidovadlá
sú striebrolesklé, mäkké kovy
valenčný elektrón je pútaný veľmi slabo
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
S1 prvky sa v prírode vyskytujú?
len v zlúčeninách
vo forme voľných iónov
ako voľné atómy
nevyskytujú sa
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