Year 7

Development of the Periodic Table

Understand that elements have different properties and how the periodic table has been developed over time according to our knowledge of these properties.

Year 7

Development of the Periodic Table

Understand that elements have different properties and how the periodic table has been developed over time according to our knowledge of these properties.

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Lesson details

Key learning points

  1. Define and describe some properties of elements.
  2. Describe how the periodic table has developed over time

Equipment

Periodic table (useful but not essential)

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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6 Questions

Q1.
What is the name for a tiny particle that makes up everything?
Correct answer: atom
element
ion
molecule
oxygen
Q2.
Substances made up of only one type of atom are called ...
compounds.
Correct answer: elements.
mixtures.
molecules.
Q3.
The atomic number is ...
the number of neutrons in the nucleus.
Correct answer: the number of protons in the nucleus.
the total number of neutrons and protons in the nucleus.
Q4.
The periodic table is a list of all the known ...
Correct answer: elements.
metals.
particles.
substances.
Q5.
The horizontal rows in the periodic table are called ...
clubs.
families.
groups.
Correct answer: periods.
Q6.
The verticle columns in the periodic table are called ...
clans.
clubs.
families.
Correct answer: groups.
periods.

6 Questions

Q1.
Which two are examples of physical properties?
Correct answer: colour
flammability
Correct answer: melting point
reactivity
toxicity
Q2.
Starting with the earliest, put these scientists in order of their contribution to the development of the periodic table.
1 - Newlands
2 - Mendeleev
3 - Moseley
Q3.
The discovery of which subatomic particle allowed Moseley to reorder the periodic table?
Correct Answer: proton, protons, the proton
Q4.
Elements in the same group of the periodic table share similar ...
atomic numbers.
atomic weights.
Correct answer: properties.
symbols.
Q5.
What is the name of the horizontal rows in the modern periodic table?
families
groups
Correct answer: periods
teams
Q6.
Match each of the following scientists with their contribution to the development of the periodic table.
Correct Answer:Newlands ,put elements into groups of 8 based on their properties

put elements into groups of 8 based on their properties

Correct Answer:Mendeleev,occasionally ignored the atomic weight as thought it incorrect

occasionally ignored the atomic weight as thought it incorrect

Correct Answer:Moseley,ordered the elements based on their atomic number

ordered the elements based on their atomic number