Question

short answer type questions p. What do you mean by valance electrons?
9. Why tea is cooled more rapidly by blowing on it?
r. How many poles does a magnet have?​

Answer 1

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1).Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

2).When you blow into the hot liquid, yes, the air you're causing to come into contact with the liquid is cooler than the liquid itself, and so that heat exchange will help your beverage cool faster.

3).Two poles.

Answer 2

Answer:

electrons present in outermost shell of an element is known as valence electrons.

magnet have two poles

North and south pole

Explanation:

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