Chemical Trends

Question 1

Grp 1 elements are called

Answer 1

Alkali Metals

Question 2

Grp 2 elements are called

Answer 2

Alakaline Earth Metals

Question 3

Grp 3-12 are called

Answer 3

Transition Metals

Question 4

Grp 13-17

Answer 4

Metalloids** (not all)

Question 5

Grp 17

Answer 5

Halogens

Question 6

Grp 18

Answer 6

Nobles Gases

Question 7

Period 6 Elements

Answer 7

Lanthanides

Question 8

Period 7 Elements

Answer 8

Actinides

Question 9

Diatomic Atoms

Answer 9

H, O, F, Br, I, N, Cl

Question 10

Differences between metals and nonmetals

Answer 10

Metals are malleable and lustrous, good conductors of heat and electricity, are generally solid at room temperature, lose electrons to become anions, and have high melting and boiling points

Question 11

Atomic radius

Answer 11

Half the distance between nuclei of two atoms

Question 12

Trend of atomic radii

Answer 12

Decreases left to right across a period, and increases down a group

Question 13

Formula for effective nuclear charge

Answer 13

of protons - # of shielding electrons

Question 14

Trend of effective nuclear charge

Answer 14

Increases left to right across a period, and decreases down a group

Question 15

What are isoelectronic series?

Answer 15

Elements with identical electron configurations, but with difference numbers of protons

Question 16

Ionization Energy

Answer 16

The energy required to remove an electron from an atom

Question 17

Trend of ionization energy

Answer 17

Increases across a period and decreases down a group

Question 18

Electron Affinity

Answer 18

Amount of energy released when an electron is added to an atom

Question 19

Trend of Electron Affinity

Answer 19

Increases across a period. Decreases down a group

Question 20

Electronegativity

Answer 20

The ability of an atom to attract electrons in a bond

Question 21

Trends of electronegativity

Answer 21

Increases across a period and decreases down a group