Chemistry
Grade-9
Easy
Question
Elements in a period
- Are arranged alphabetically
- Have identical properties
- Belong to the same family
- Have the same number of electron shells
Hint:
Elements in a period have same number of electron energy levels.
The correct answer is: Have the same number of electron shells
- Elements in a period have same number of electron shells.
- From left to right in a period atomic number increases by 1.
- From left to right metallic character decreases.
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