Section 8.5- Periodic Properties of the Elements

Question 1

physical and chemical properties that illustrate the periodic law

Answer 1

atomic radius
ionic radius
ionization energy
metallic character
electron affinity
electronegativity

Question 2

as you go down a group, the atomic radius __________

Answer 2

increases

Question 3

as you go across a period from left to right, the atomic radius

Answer 3

decreases

Question 4

largest element of the periodic table

Answer 4

francium

Question 5

smallest element of the periodic table is

Answer 5

Neon

Question 6

when a metal atom loses electrons in a chemical reaction to become a ____________, it generally loses the electrons in the largest n, resulting in an ion that has one less shell than the metal atom.

Answer 6

cation

Question 7

as a rule, simple cations are _____________ than the neutral atoms from which they were formed

Answer 7

smaller

Question 8

simple anions are ______ than the neutral atoms from which they were formed

Answer 8

larger

Question 9

if an electron is removed from an isolated, neutral atom, the atom becomes and

Answer 9

electrically charged ion

Question 10

the energy required to remove an electron from an atom is the

Answer 10

ionization energy

Question 11

after the first electron is removed, removing additional electrons becomes _______________

Answer 11

more difficult

Question 12

the energy required to remove the first electron from a neutral atom is the

Answer 12

first ionization energy

Question 13

energy required to remove the second electron is called the

Answer 13

second ionization energy

Question 14

in general, first ionization _____________ from left to right across the period and ______________ down a group

Answer 14

increases across
decreases down

Question 15

ability of an atom to lose an electron

Answer 15

metallic character

Question 16

the ______________ the ionization energy the ____________ the metallic character

Answer 16

lower ionization energy
higher metallic character

Question 17

metallic character follows the ______________ trend

Answer 17

atomic radii trend

Question 18

metallic character _____________ down a group and ____________ across a period from left to right

Answer 18

increases down
decreases across

Question 19

the group that is not included with the process

Answer 19

noble gases

Question 20

the fourth trend of the periodic table which is the amount of ENERGY involved in adding one electron to a gaseous atom of the element

Answer 20

electron affinity (Eea)

Question 21

in general, nonmetals have more _______________ Eea values than metals

Answer 21

negative

Question 22

the ABILITY of an atom to attract an electron to itself

Answer 22

electronegativity

Question 23

electronegativity is often measured using a relative scale devised by

Answer 23

Linus Pauling