Y Gyfres Actifedd
Quiz
•
Chemistry, Science
•
9th Grade
•
Practice Problem
•
Hard

B Yapp
Used 2+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Pa wefr sydd gan niwtronau?
positif
negatif
niwtral
dim wefr
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sawl electron sydd gan sylffwr
16
32
48
2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sut ydym yn cyfrifo nifer y niwtronau sydd gan elfen?
Rhif atomig
Rhif mas
Rhif mas - Rhif atomig
Rhif atomig - Rhif mas
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pam mae potasiwm yn dadleoli sodiwm?
Mae potasiwm yn llai adweithiol
Mae sodiwm yn fwy adweithiol
Mae potasiwm yn fwy adweithiol
Mae'r ddau gyda'r un adweithedd
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa elfen sy'n hydoddi i siap pel wrth adweithio gyda dwr?
Lithiwm
sodiwm
potasiwm
magnesiwm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa gronyn sydd ddim yn y niwclews?
Electron
Proton
Niwtron
Photon
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa nwy sy'n ffurfio wrth i fetelau adweithio a dwr?
carbon deuocsid
ocsigen
hydrogen
amonia
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