2.The group number will give an idea of the number of valence electrons.To find how many valence electrons are in an element, simply locate the column number that it is in, and that determines the number of valence electrons in an element. This rule works only for elements excluding the transition metals.
3. Metals have less valence electrons which is usually 1-2, while non metal have 5-7 valence electrons, and noble gases have 8 valence electrons.
4. Electronegativity values increases from left to right across a period. Noble gases does not have electronegativity.
5. Metals have low ionization energy while nonmetal have high ionization energy, while noble gases have the highest ionization energy.
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2.The group number will give an idea of the number of valence electrons.To find how many valence electrons are in an element, simply locate the column number that it is in, and that determines the number of valence electrons in an element. This rule works only for elements excluding the transition metals.
3. Metals have less valence electrons which is usually 1-2, while non metal have 5-7 valence electrons, and noble gases have 8 valence electrons.
4. Electronegativity values increases from left to right across a period. Noble gases does not have electronegativity.
5. Metals have low ionization energy while nonmetal have high ionization energy, while noble gases have the highest ionization energy.
note: naibigay ko na answer for number 1 noon.