
8 klasės diagnostinis testas
Authored by Karolina Rodaityte
Chemistry
8th Grade
Used 27+ times

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40 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kada atomas tampa jonu?
Kai prisijungia elektroną
Kai atiduoda elektroną
Niekada
Tampa tada, kai nori
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokia sąvoka atitinka apibūdinimą?
„To paties elemento atomai, branduolyje turintys po lygiai protonų, bet skirtingą neutronų skaičių“
Molekulė
Junginys
Izotopas
Elektronas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaip vadinamas vandenilio izotopas, kurio branduolyje yra 1 neutronas?
Protis
Deuteris
Tritis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koks elementas išoriniame sluoksnyje turi 2 elektronus?
Kalis
Kalcis
Deguonis
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokio elemento periodinis numeris 2, o grupė IA?
Litis
Magnis
Berilis
Kalis
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokia yra cheminio elemento kalcio sudėtis?
p+=19, e-=19, no=20
p+=20, e-=19, no=20
p+=20, e-=20, no=20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri metalų savybė priskiriama prie cheminės?
Metalas praleidžia elektros srovę
Metalas yra kietosios būsenos
Metalas reaguoja su druskomis
Metalas turi aukštą lydymosi temperatūrą
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