Module 5.3 Periodic Properties

Question 1

Ionization energy

Answer 1

is a measure of how much energy is needed to remove an electron from an atom

Question 2

Ionization energy ? as you go down a vertical column of elements since the elements are becoming larger and less energy is needed to remove an electron which is more distant from the attracting nucleus

Answer 2

decreasing

Question 3

Ionization energy ? as you go left to right across a horizontal roll Elements since more energy is needed to remove an electron which is being attracted by a greater nuclear charge

Answer 3

increases

Question 4

Electronegativity

Answer 4

is the attraction an atom has for its outer shell Electrons

Question 5

Electronegativity ? as you go down a vertical column of elements since the elements are becoming larger and the outer shell electrons are more distant from the attracting nucleus

Answer 5

decreases

Question 6

Electronegativity ? as you go left to wrote across a horizontal row elements the greater nuclear charge holds the outer shell electrons more tightly

Answer 6

increases

Question 7

Electronegativity

? have low electronegativity

Answer 7

metals

Question 8

Electronegativity

? have high electronegativity

Answer 8

nonmetals

Question 9

Atomic size

Answer 9

is the distance from the center of the nucleus to the outer shell of an atom

Question 10

Atomic size ? Increases as you go down a vertical column of elements since the elements have outer shell which are more distant from the nucleus

Answer 10

increases

Question 11

Atomic size ? as you go left to right across a horizontal roll of elements since the outer shell is being attracted by a greater nuclear charge

Answer 11

decreases