The Periodic Table (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
Which scientist noticed that elements with similar properties could be grouped into triads?
Which scientist noticed that elements with similar properties could be grouped into triads?
Johann Döbereiner
What were 'triads' in the context of early element classification?
What were 'triads' in the context of early element classification?
Groups of elements with similar properties
Who created the first widely recognised version of the Periodic Table?
Who created the first widely recognised version of the Periodic Table?
Dmitri Mendeleev
What nationality was Dmitri Mendeleev?
What nationality was Dmitri Mendeleev?
Russian
How did Mendeleev arrange elements in his Periodic Table?
How did Mendeleev arrange elements in his Periodic Table?
By increasing atomic mass
What did Mendeleev do for elements that had not yet been discovered?
What did Mendeleev do for elements that had not yet been discovered?
Left gaps in his table
What did Mendeleev predict with remarkable accuracy?
What did Mendeleev predict with remarkable accuracy?
Properties of undiscovered elements
How are elements arranged in the modern Periodic Table?
How are elements arranged in the modern Periodic Table?
By increasing atomic number
What does atomic number represent?
What does atomic number represent?
The number of protons
Why was arranging by atomic number better than by atomic mass?
Why was arranging by atomic number better than by atomic mass?
It resolved inconsistencies
What is one significance of the Periodic Table?
What is one significance of the Periodic Table?
It helps predict properties of new elements