Q1. Metals are located before the metalloids, on the left side of the periodic table of element (groups 1-13), Non-metals are located after the metalloids, on the right side of the periodic table (groups 14-17) Noble gases are found at the rightmost column of the periodic table.
Q2. The group of the s-block (groups 1 and 2) elements tells us the number of valence electrons.
Q3. Metals have lesser valence electrons than non-metals. All noble gases have 8 valence electrons, except for helium.
Q4. a. metals
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