Chemistry
Grade-9
Easy
Question
The __________________ of an element is the tendency to release energy.
- Alkaline reaction
- Valence reactivity
- Periodic reactivity
- Reactivity
Hint:
The tendency of a substance to react.
The correct answer is: Reactivity
- Alkaline reaction is a reaction indicating alkalinity, as by the action on limits, turmeric etc.
- The valence electrons participating in a reaction.
- The reactivity of elements increases going from left to right on the periodic table.
- The reactivity of an element is the tendency to release energy.
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