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The Periodic Table

In this worksheet, students explore the structure of the Periodic Table and how it is used.

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QUESTION 1 of 10

Dmitri Mendeleev (1834-1907), a Russian chemist, published the Periodic Table in 1869. Mendeleev's picture is shown below:

 

 

 

All materials - living and non-living - are made of atoms. They combine in millions of different ways to make everything we see around us, even us! Scientists discovered the structure of the atom and this helped them arrange the elements in order on the Periodic Table. Mendeleev was the pioneer, arranging the elements in order of relative atomic mass. He realised that the properties of elements were related to their relative atomic mass and put the elements with similar properties in vertical groups, the same groups we see on the Periodic Table today. However, at the time not all elements had been discovered, but that did not put him off. He simply realised that there were more elements to be discovered and left gaps on the Periodic Table for those elements! Mendeleev went even one step further to predict the properties of the missing elements and turned out to be right when those elements were finally discovered!

 

In 1913 a British chemist, Henry Moseley, realised that it would be better to use atomic number rather than mass, so he put the final touch on the Periodic Table, after resolving some issues that surfaced from Mendeleev's work. 

The Periodic Table, as we know it today, is shown below. Familiarise yourself with the position of alkali metals (Group 1), halogens (Group 7), metals and non-metals, transition metals and noble gases (Group 0).

 

Who was the pioneer of the Periodic Table?

Sir Isaac Newton

James Joules

Dmitri Mendeleev

Henry Moseley

Which group on the periodic table are the halogens? 

Group 0

Group 7

Group 1

What group on the periodic table are the noble gases? 

Group 0

Group 13

Group 3

What group on the Periodic Table are the alkali metals?

Group 0

Group 1

Group 13

Where are the transition metals mainly found on the periodic table?

left

right

centre

Where can you find most metals on the periodic table?

on the left

on the right

in the centre

Where can you find most non-metals on the periodic table?

on the left

on the right

in the centre

What are ALL materials made of?

oxygen

atoms

liquid

bones

Why was Mendeleev so successful with the Periodic Table?

he arranged the elements in order of their atomic mass and properties

he arranged the elements in no particular way

he was not sure why they were gaps in his periodic table

What did Moseley change in Mendeleev's periodic table which improved it?

he rearranged it in order of atomic mass

he rearranged it according to elements' properties

he rearranged the elements in order of atomic number and properties

  • Question 1

Who was the pioneer of the Periodic Table?

CORRECT ANSWER
Dmitri Mendeleev
EDDIE SAYS
Dmitri Mendeleev created the first edition of the Periodic Table.
  • Question 2

Which group on the periodic table are the halogens? 

CORRECT ANSWER
Group 7
EDDIE SAYS
The halogens are Group 7.
  • Question 3

What group on the periodic table are the noble gases? 

CORRECT ANSWER
Group 0
EDDIE SAYS
The Noble Gases are Group 0.
  • Question 4

What group on the Periodic Table are the alkali metals?

CORRECT ANSWER
Group 1
EDDIE SAYS
The Alkali Metals are Group 1.
  • Question 5

Where are the transition metals mainly found on the periodic table?

CORRECT ANSWER
centre
EDDIE SAYS
Transition metals are mainly in the centre.
  • Question 6

Where can you find most metals on the periodic table?

CORRECT ANSWER
on the left
EDDIE SAYS
Most metals are on the left. As you move towards the right hand side, you find the noble gases etc...
  • Question 7

Where can you find most non-metals on the periodic table?

CORRECT ANSWER
on the right
EDDIE SAYS
Most metals are on the right.
  • Question 8

What are ALL materials made of?

CORRECT ANSWER
atoms
EDDIE SAYS
All materials are made of atoms.
  • Question 9

Why was Mendeleev so successful with the Periodic Table?

CORRECT ANSWER
he arranged the elements in order of their atomic mass and properties
EDDIE SAYS
He arranged the elements in order of atomic mass and properties.
  • Question 10

What did Moseley change in Mendeleev's periodic table which improved it?

CORRECT ANSWER
he rearranged the elements in order of atomic number and properties
EDDIE SAYS
In 1913 a British chemist, Henry Moseley, realised that it would be better to use atomic number rather than mass, so he put the final touch on the Periodic Table, after resolving some issues that surfaced from Mendeleev's work.
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