Starter quiz
- What is the periodic table?
- A list of all known compounds.
- A chart that lists all known elements. ✓
- A tool for measuring atomic mass.
- A guide to chemical reactions.
- A chart of all known molecules.
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- What is the chemical symbol for hydrogen?
- 'H' ✓
- What is an atom?
- The smallest part of an element that can take part in a chemical reaction. ✓
- The smallest part of a compound.
- A large molecule.
- A type of cell.
- A mixture of different elements.
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- Why is the periodic table organised in a specific way?
- To alphabetise the elements.
- To show the relationships and properties of the elements. ✓
- To group metals together.
- To display elements in order of discovery.
- To classify elements by colour.
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- Match the description to the correct type of element.
- metals⇔Elements that are shiny, conductive and malleable. ✓
- metalloids⇔Elements that have properties of both metals and non–metals. ✓
- non–metals⇔Elements that are usually brittle, non–conductive and often dull. ✓
- Match the element to the correct statement.
- helium⇔A non–metal used in balloons to make them float. ✓
- iron⇔A metal used in construction. ✓
- oxygen⇔A non–metal we need to survive (for respiration). ✓
- nitrogen⇔A non–metal that makes up 80% of the air we breathe. ✓
Exit quiz
- Which of the following statements about the periodic table are correct?
- The periodic table is organised by increasing atomic number. ✓
- Each row in the periodic table is called a group.
- Elements in the same group have different properties.
- Each column in the periodic table is called a period.
- The periodic table was developed by Dimitri Mendeleev. ✓
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- Which of the following statements about elements in the same group is correct?
- They have the same number of electron shells.
- They have similar chemical properties. ✓
- They have the same atomic number.
- They are always metals.
- They have the same number of protons.
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- Dimitri ______ developed the periodic table, organising elements by their properties.
- 'Mendeleev' ✓
- Which of the following did Dimitri Mendeleev do when developing the periodic table?
- He organised elements by increasing atomic weight. ✓
- He grouped elements with similar properties. ✓
- He discovered the electron.
- He left gaps for undiscovered elements. ✓
- He created the modern periodic law.
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- Which statement of the following statements about the transition metals is correct?
- They are found in Group 1 of the periodic table.
- They have similar properties to non–metals.
- They are located in the central block of the periodic table. ✓
- They have very low melting points.
- They are all gases at room temperature.
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- Match the following elements to their group.
- francium⇔Group 1 ✓
- calcium⇔Group 2 ✓
- boron⇔Group 3 ✓
- carbon⇔Group 4 ✓
- fluorine⇔Group 7 ✓
- argon⇔Group 0 ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Each column of the periodic table is called a group, and each row is called a period.
- The periodic table was developed by a Russian scientist called Dimitri Mendeleev.
- The periodic table contains all the elements organised into groups and periods, according to their properties.
- The elements in the same group in the periodic table have similar properties.
- In addition to groups, elements can be divided into non-metals and metals, which include the transition metals.
Common misconception
Elements in the same period have similar properties.
Properties vary across a period; it is elements in the same group that share similar properties.
Keywords
Periodic table - is a list of all known elements, ordered by increasing atomic number. It is split into vertical columns called groups, and horizontal rows called periods.
Group - is a column on the periodic table that corresponds to the number of electrons in the outer shell of an atom.
Period - is a horizontal row on the periodic table. Each period corresponds to a number of shells of electrons in an atom of an element.
Transition metals - a group of metals found in the central block of the periodic table.
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