Unit 3 Periodic Table

Question 1

Left side of the periodic table:

Answer 1

metals

Question 2

malleable, ductile

Answer 2

metals

Question 3

good conductors of electricity

Answer 3

metals

Question 4

most are solid at room temperature (except for mercury)

Answer 4

metals

Question 5

right side of periodic table (and hydrogen)

Answer 5

nonmetals

Question 6

brittle

Answer 6

nonmetals

Question 7

most are gas at room temperature

Answer 7

nonmetals

Question 8

located along stair step of periodic table

Answer 8

metalloids

Question 9

semiconductors

Answer 9

metalloids

Question 10

Periods

Answer 10

horizontal rows on the periodic table

Question 11

Groups

Answer 11

vertical columns on the periodic table (also called families)

Question 12

what groups are transition metals

Answer 12

groups 3-12 or B groups

Question 13

transition metals are _____ luster

Answer 13

high

Question 14

inner transition metals

Answer 14

lanthanides: bellow periodic table (first row)
actinides: bellow periodic table (second row)

Question 15

Halogens

Answer 15

Group 17
-most reactive nonmetals

Question 16

Nobel Gases

Answer 16

group 18
-Stable atoms that don’t bond with other elements (inert)
-nonflammable and nonreactive

Question 17

Alkali metals

Answer 17

first group of periodic tables
-most reactive metals

Question 18

where are Alkaline Earth metals

Answer 18

group 2 in periodic table

Question 19

Electron Cloud

Answer 19

area round nucleus where electrons are likely to be found.

Question 20

Orbitals

Answer 20

3d regions around the nucleus that describe probable locations of electrons

Question 21

What are the four types of sublevels?

Answer 21

s, p, d, f

Question 22

how many orbitals dose each sublevel have?

Answer 22

s=1
p=3
d=5
f=7

Question 23

How many electrons can each sublevel hold?

Answer 23

s=2
p=6
d=10
f=14

Question 24

each orbital can hold ___ electrons?

Answer 24

2

Question 25

Electron Configuration

Answer 25

the arrangement of electrons in an atom

Question 26

An electron occupies the ________ energy orbital that can receive it.

Answer 26

lowest

Question 27

2 electrons that occupy the same orbital must have ______ ___________.

Answer 27

opposite spins

Question 28

How do orbitals of the same energy fill up?

Answer 28

each orbital is occupied by 1 electron before any orbital is occupied by a 2nd electron.

Question 29

In the Sublevel 3s^2 what dose "3" represent

Answer 29

3 represents the energy level.

Question 30

Valence Electrons

Answer 30

the electrons in the outermost energy level (energy shell)

Question 31

Oxidation number

Answer 31

the charge of an ion

Question 32

stable

Answer 32

an atom with a full outer energy shell

Question 33

period number =

Answer 33

the number of energy levels

Question 34

for non-transition elements, group number=

Answer 34

number of valence electrons

Question 35

For transition metals, the number of valence electrons is:

Answer 35

all electrons in the highest value of n (energy level), and unfilled d or f shells

Question 36

Octet rule-

Answer 36

chemical compounds form so that each atom has a full set of electrons in its highest energy level.

Question 37

Trend in atomic radius and atomic character across the periodic table:

Answer 37

increases as you go down the periodic table decreases as you go from left to right

Question 38

Trend in electronegativity and ionization energy across the periodic table:

Answer 38

decreases as you go down the periodic table increases as you go from left to right

Question 39

Cation

Answer 39

a positive ion -metals from cations

Question 40

Anion

Answer 40

a negative ion -nonmetals from anions

Question 41

Ionization energy (IE)

Answer 41

energy needed to remove an electron from a neutral ion -the greater the number the harder it is to remove an electron

Question 42

Each successive electron removed requires ________ energy.

Answer 42

more

Question 43

electronegativity

Answer 43

the ability of an atom to attract electrons.

Question 44

metalic character

Answer 44

ser of chemical properties associated with metal on the periodic table. -ability to lose electrons (easily achieve octet) -low ionization energy -low electronegativity

Question 45

Most metallic elements

Answer 45

bottom left

Question 46

What elements along the stair of the periodic table are not Metalloids?

Answer 46

Aluminum (Al), Astatine (At)