Answer:
Q1) solids are strong, gasses are weak
Explanation:
- Solids are Tightly packed molecule with no gap or space in between.
- Gasses are loosely packed and move freely in our atmosphere.
- Examples of solids are Wood, steel, plastic etc
- Example of gasses are oxygen, Carbon dioxide, nitrogen
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The correct answer is the second option; sodium (Na) and potassium (K.)
Both sodium and potassium have the same number of valence electrons.
FBI Fedral Burea of Investagation
Drying clothes is a physical change, because it is not permanent. The clothes could just be wettened again, therefore it is not a chemical change.
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