Please tell what would be the answer for this question
DEAR STUDENT,
1.Across a period from left to right in the modern periodic table.
Number of electron shells remains same; number of valence electrons increases by one; electronegativity increases; character of elements changes from electropositive to electronegative.
2.Down a group in the periodic table.
Number of electrons in shells increases by one; number of valence electrons remains same; electronegativity decreases; character of elements changes from electronegative to electropositive.
REGARDS,
1.Across a period from left to right in the modern periodic table.
Number of electron shells remains same; number of valence electrons increases by one; electronegativity increases; character of elements changes from electropositive to electronegative.
2.Down a group in the periodic table.
Number of electrons in shells increases by one; number of valence electrons remains same; electronegativity decreases; character of elements changes from electronegative to electropositive.
REGARDS,