Chapter 6: The Periodic Table

Question 1

Metals

Answer 1

Good conductors of heat and electric current

Question 2

Nonmetals

Answer 2

Poor conductors of heat and electric current

Question 3

Metalloid

Answer 3

Generally has properties that are similar to those of metals and nonmetals

Question 4

Group 1A

Answer 4

Alkali metals

Question 5

Group 2A

Answer 5

Alkaline earth metals

Question 6

Group 7A

Answer 6

Halogens

Question 7

Group 8A

Answer 7

Noble gases

Question 8

Representative elements

Answer 8

Elements in groups 1A through 7A; called “representative” because they’re so diverse

Question 9

Atomic radius

Answer 9

One half of the distance between the nuclei of two atoms of the same element when the atoms are joined

Question 10

In general, atomic size increases from top to bottom within a group and decreases from left to right across a period

Answer 10

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Question 11

Cation

Answer 11

Positive ion

Question 12

Anion

Answer 12

Negative ion

Question 13

Ionization energy

Answer 13

Energy required to remove an electron from an atom

Question 14

First ionization energy tends to decrease from top to bottom within a group and increase from left to right across a period

Answer 14

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Question 15

Cations are always smaller than the atoms from which they form because they lost electrons and got smaller. Anions are always larger than the atoms from which they form because they gained electrons and got bigger.

Answer 15

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Question 16

Electronegativity

Answer 16

Ability of an atom of an element to attract electrons when the atom is in a compond

Question 17

In general, electronegativity values increases bottom to top within a group. For representative elements, the values tend to increase from left to right across a period. Fluorine is the most electronegative element.

Answer 17

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