1.2 The periodic table

Question 1

What is the periodic table ?

Answer 1

The periodic table provides chemists with a structured organisation of the known chemical
elements from which they can make sense of their physical and chemical properties.

Question 2

What is the development of the periodic table ?

Answer 2

The historical
development of the periodic table and models of atomic structure provide good examples of how
scientific ideas and explanations develop over time as new evidence emerges.

Question 3

What is the arrangement of the periodic table ?

Answer 3

The arrangement of
elements in the modern periodic table can be explained in terms of atomic structure which provides
evidence for the model of a nuclear atom with electrons in energy levels.

Question 4

Mendeleev Periodic Table

Answer 4

1) Atomic weight
2) Similar properties
3) Left some gaps - predicting new elements

Question 5

Modern Periodic Table

Answer 5

1) Atomic number
2) Similar properties

Question 6

What does groups tell you on periodic table

Answer 6

Num of electrons in outer shell

Question 7

What does periods tell you on periodic table

Answer 7

Num of shells

Question 8

Properties Metals

Answer 8

Strong
Hard
Dull
Conducts heat +elect
Malleable
Ductile

Question 9

Properties non-metals

Answer 9

Low density
Dull

Question 10

Group 1

Answer 10

Alkali metals