\\Within a family, elements with higher atomic numbers pull less strongly on ele
ID: 592734 • Letter: #
Question
Within a family, elements with higher atomic numbers pull less strongly on electrons in a bond, because the valance electrons are in higher principal energy levels.
True False
Within a period, elements with lower atomic numbers have atoms of smaller radius because the atoms have higher effective nuclear charge.
Within a family, elements with lower atomic numbers require more energy to remove an electron from the atom, because the atoms have higher effective nuclear charge.
Within a family, elements with higher atomic numbers have lower electronegativity because the atoms have lower effective nuclear charge.
Within a period, elements with lower atomic numbers require more energy to remove an electron from the atom, because the atoms have lower effective nuclear charge.
Within a family, elements with higher atomic numbers have lower ionization energy because the valance electrons are in higher principal energy levels.
Explanation / Answer
(1)-Within a family, elements with higher atomic numbers pull less strongly on electrons in a bond, because the valance electrons are in higher principal energy levels. Answer-TRUE-BECAUSE SHIELDING EFFECT OF HIGHER VALENCE ENERGY LEVEL IS LOW
(2)Within a period, elements with lower atomic numbers have atoms of smaller radius because the atoms have higher effective nuclear charge. Answer-FALSE-(REASON IS SAME AS ABOVE IN QUESTION 2)
(3)Within a family, elements with lower atomic numbers require more energy to remove an electron from the atom, because the atoms have higher effective nuclear charge. Answer-TRUE-(REASON IS SAME AS ABOVE IN QUESTION 3)
(4)Within a family, elements with higher atomic numbers have lower electronegativity because the atoms have lower effective nuclear charge. Answer- TRUE-REASON IS SAME AS ABOVE IN QUESTION 4.
(5)Within a period, elements with lower atomic numbers require more energy to remove an electron from the atom, because the atoms have lower effective nuclear charge. Answer-FALSE-(IT IS DIFFICULT TO REMOVE A VALENCE ELECTRON FROM LOWER ENERGY LEVEL)
(6)Within a family, elements with higher atomic numbers have lower ionization energy because the valance electrons are in higher principal energy levels. Answer-TRUE-(IT IS EASY TO REMOVE A VALENCE ELECTRON FROM HIGHER ENERGY LEVEL ALONG A FAMILY)
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