Easy Ionic bonding part 1_ASN
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Palmarine S.
Used 3+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
การจัดเรียงอิเล็กตรอนในระดับพลังงานหลักของธาตุต่างๆ เป็นดังนี้
A : 2 8 1 B : 2 8 7 C : 2 8 2 D : 2 8 6
การรวมธาตุข้อใดเป็นเกิดเป็นสารประกอบโคเวเลนท์
A + B
A+C
B+ C
B + D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these statements about a negative ion is true?
It has an equal number of protons and electrons
It has more protons than electrons
It has more electrons than protons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do metal atoms form ions?
They lose electrons to form negative ions
They gain electrons to form positive ions
They lose electrons to form positive ions
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
เพราะเหตุใด Al จึงนำไฟฟ้าได้ดีกว่า NaClที่อุณหภูมิปกติ
เพราะจำนวนอิเล็กตรอนคู่โดดเดี่ยวของ Cl ถูก Na ยึดจับไว้
เพราะ Al มีอิเล็กตรอนอิสระเคลื่อนที่อยู่ตลอดเวลา
เพราะอิเล็กตรอนอิสระของ Na ถูกนำไปใช้ร่วมกับอิเล็กตรอนคู่โดดเดี่ยวของ Cl
เพราะ Al เป็นของแข็งที่อุณหภูมิปกติ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดเป็นสารประกอบไอออนิก
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bromine is in group 7 of the periodic table. What is the charge on its ions?
-1
-2
+1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A magnesium ion has the formula Mg2+. What is its electronic structure?
2
2,8,2
2,8,8,2
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