Chapter 4- The Periodic Table

Question 0

Who is known as the father of the modern periodic table

Answer 0

Mendeleev

Question 1

Mendeleev

Answer 1

Published 1st period table in 1869

Question 2

How did Mendeleev arrange elements

Answer 2

In order of increasing atomic mass and by properties, both physical and Chemical

Question 3

Moseley

Answer 3

Reorders the elements on the periodic table by atomic number In1911

Question 4

Group

Answer 4

Vertical

Question 5

Period

Answer 5

Horizontal

Question 6

Metal

Answer 6

Located to the left of the zig zag

Question 7

Nonmetal

Answer 7

Located to the right of the zig zag

Question 8

Metalloid

Answer 8

Located along the zig zag line

Question 9

Location of alkali metals

Answer 9

Group 1

Question 10

Alkali properties

Answer 10

Silvery
Soft
Very reactive
React strong with water

Question 11

Location of Alkaline earth metal

Answer 11

Group 2

Question 12

Alkaline earth metal properties

Answer 12

Harder and denser
Higher melting points
Less reactive

Question 13

Transition metals

Answer 13

D block elements

Question 14

Why does the D block contain 10 groups

Answer 14

There are 5 d orbitals and each contain 2 electrons

Question 15

Location of halogen

Answer 15

Group 17

Question 16

Halogen properties

Answer 16

Most reactive of the nonmetals

Reactive with most levels to form salts

Question 17

Location of noble gases

Answer 17

Group 18

Question 18

What is the arrangement of noble gases

Answer 18

Stable

Question 19

Inner transition metals

Answer 19

Lanthides amd actinides

Groups 6 and 7

Question 20

How is the periodic law demonstrated within groups of the periodic table

Answer 20

Elements in a group have similar properties

Question 21

Why are elements not in strict increasing order

Answer 21

They are in order of the atomic number, not the atomic mass

Question 22

What info is recorded on the periodic table

Answer 22

Atomic number and mass, element name, symbol, and on some you can find the electron configuration

Question 23

How could you organizes elements according to the trends

Answer 23

Make predictions

Question 24

How is the periodic table periodic

Answer 24

Properties of the elements occur periodically

Question 25

Who discovered periodic law

Answer 25

Mendeleev

Question 26

Who established atomic numbers as the basis for organizing

Answer 26

Mosley

Question 27

Three sets of elements that has been added since mendeleevs time

Answer 27

Helium, krypton, xenon

Question 28

Why are electrons important

Answer 28

They find the elements chemically properties

Question 29

Why do elements in the same group have similar properties

Answer 29

They have similar electron configurations

Question 30

Into how many blocks is the table divided and what are they called

Answer 30

4 blocks, | S,p,d,f

Question 31

What does each block represent

Answer 31

The energy level and sub level that is being filled with electrons

Question 32

Why does the s block span two groups of elements

Answer 32

S orbitals only hold two electrons

Question 33

Group configuration of each element in group 1

Answer 33

Ns1

Question 34

Group configuration of each element in group 2

Answer 34

S2

Question 35

Ending electron configuration of the element in period 3, group 1

Answer 35

3s1

Question 36

Why does the p block span six groups

Answer 36

3p orbitals hold 6 electrons

Question 37

Why are there no p block elements in period 1

Answer 37

P orbitals don't start until the 2nd energy level

Question 38

Ending electron configuration of each element in group 14

Answer 38

Ns2np2

Question 39

In what period does the first d energy sublevel appear

Answer 39

Period 4

Question 40

In what period does the first f energy sublevel appear why

Answer 40

6 because that is where they fall in terms of electrons going in to atoms

Question 41

Why are members of group 18 unreactive

Answer 41

There is a stable arrangement of electrons

Question 42

Determine the group, period, and block for the following elements 1s1 [Ne]3s23p1

Answer 42

1s1- s block, group 1, period 1 | [Ne]3s2 3p1- p block, group 13, period 3

Question 43

Describe the relationship between atomic radio and atomic numbers

Answer 43

As atomic number increases the atomic radii decreases

Question 44

What are the smallest and largest first ionization energies

Answer 44

Smallest- Fr | Largest- He

Question 45

If an element has a low ionization energy is it easy or hard to remove an electron? Reactive or unreactive?

Answer 45

Easier to remove and will be reactive

Question 46

What happens to a numeral atom if it loses one electron

Answer 46

It becomes positive

Question 47

Why do the first two elements in the first period not have ionic radii

Answer 47

Hydrogen- too small | Helium- doesn't form ions

Question 48

How can you figure out the charge of an ion

Answer 48

Charge = protons - electrons