Periodic Table

Question 1

English scientist Robert Moseley arranged the periodic table according to what?

Answer 1

Increasing atomic numbers

Question 2

Groups

Answer 2

Also called families or columns, top to bottom

Question 3

4 characteristics of group 1 and 2 metals

Answer 3

1) Cannot be found alone on Earth
2) Appear in compounds as oxides
3) Lose electrons readily to react
4) Most active/reactive metals

Question 4

Group 1

Answer 4

Alkali metals

Question 5

Group 2

Answer 5

Alkaline earth metals

Question 6

Group 17

Answer 6

Halogens

Question 7

Group 18

Answer 7

Noble gases

Question 8

Groups 3-12 and some under the staircase

Answer 8

Transition metals

Question 9

Left of the staircase (except H2)

Answer 9

Metals

Question 10

On the boldface staircase

Answer 10

Metalloids, semimetals, semiconductors

Question 11

Right of the staircase

Answer 11

Nonmetals

Question 12

Periods

Answer 12

Rows, left to right, related to the 7 PELS

Question 13

Trends in a group - atomic radius

Answer 13

As atomic radius increases, atomic radius increases

Question 14

Atomic radius

Answer 14

The size of an atom, from the nucleus to outermost electron

Question 15

Electronegativity

Answer 15

The ability to attract electrons in a bond

Question 16

4 facts about electronegativity

Answer 16

1) Fluorine has the highest EN of 4
2) Noble gases have an EN of 0
3) Metals have a low EN
4) Nonmetals have a high EN

Question 17

Trends in a group - electronegativity

Answer 17

EN decreases as you go down a group

Question 18

Ionization energy

Answer 18

The energy that must be added in order to remove the most loosely bound electron

Question 19

Ionization creates a

Answer 19

Positive ion

Question 20

Trends in a group - ionization energy

Answer 20

Ionization energy decreases going down a group, meaning it gets easier to remove the valence electron as you go down a column

Question 21

Trends in a period - atomic radius AND WHY

Answer 21

Decreases going left to right because nuclear charge is decreasing, meaning electrons are pulled closer to the nucleus

Question 22

Trends in a period - electronegativity

Answer 22

Increases going left to right

Question 23

Trends in a period - ionization energy AND WHY

Answer 23

Increases going left to right, atomic radius is decreasing so it takes more energy to remove the valence electron closer to the nucleus

Question 24

Trends in a period - metallic character

Answer 24

Decreases going left to right

Question 25

Reactive =

Answer 25

Loses electrons readily

Question 26

Most reactive metal =

Answer 26

Francium

Question 27

Most reactive nonmetal =

Answer 27

Fluorine

Question 28

Phase at room temperature for metals

Answer 28

Solid, except Hg(l)

Question 29

Phase at room temperature for nonmetals

Answer 29

Solids (I), liquids (Br), and gases (Cl)

Question 30

Semimetals

Answer 30

Have properties between metals and nonmetals