Chemistry
Grade-9
Easy
Question
Which two groups on the Periodic Table are the MOST reactive?
- Group 1 and Group 17
- Group 2 and Group 16
- Group 13 and Group 15
- Group 17 and Group 18
Hint:
Group 1 loses one electron to react and group 17 gains one electron while reacting.
The correct answer is: Group 1 and Group 17
- In the periodic table there are 118 elements arranged in 18 groups and 7 periods.
- Group 1 called alkali metals are very reactive with oxygen and water, loses one electron to react.
- Group 17 is called the halogen family is the most reactive group, gains one electron while reacting.
- Group 1 and 17 are most reactive.
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