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- 1. Multiple Choice
The following properties are gradual change from left to right in a periodic table except:
Decrease in electrical conductivity
Decrease in acidity of oxides
Decrease in metallic properties
Increase in non-metallic properties
- 2. Multiple Choice
Which of the elements has the biggest proton number?
W
X
Y
Z
- 3. Multiple Choice
Which element is a non-metal?
A
B
C
D
- 4. Multiple Choice
Which one is electron?
A
B
C
D
- 5. Multiple Choice
How many electrons are in this atom?
1
3
4
7
- 6. Multiple Choice
Sodium has 11 electrons. What is its electron arrangement?
1.10
2.9
2.5.4
2.8.1
- 7. Multiple Choice
An atom become a ___________ ion when it accepts electrons
positive
negative
- 8. Multiple Choice
Aluminium ion becomes positively charged because it
accepts 3 electron
donates 3 electron
- 9. Multiple Choice
These metals are halogens accept:
Bromine
Iodine
Neon
Chlorine
- 10. Multiple Choice
Oxygen atom has ____________ proton number.
8
10
14
16
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