Why do all the elements of the (a) same group have similar properties, (b) same period have different properties? answer soon
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a) This is because events of same group have same number of valence electrons in their valence shell. So they would either donate same no. of electrons or would gain same no. of electrons to have a full filled configuration. And since the properties of an element is determined by whether they are electropositive or electronegative they would have similar properties.
b) elements across a period have different number of valence electrons in their valence shell. They would require different no. of electrons to achieve a stable configuration amd hence would not have similar properties.
b) elements across a period have different number of valence electrons in their valence shell. They would require different no. of electrons to achieve a stable configuration amd hence would not have similar properties.
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a) This is because events of same group have same number of valence electrons in their valence shell. So they would either donate same no. of electrons or would gain same no. of electrons to have a full filled configuration. And since the properties of an element is determined by whether they are electropositive or electronegative they would have similar properties.
b) elements across a period have different number of valence electrons in their valence shell. They would require different no. of electrons to achieve a stable configuration and hence would not have similar properties.
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