The Periodic Table (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How did Mendeleev originally arrange elements in his periodic table?
How did Mendeleev originally arrange elements in his periodic table?
By increasing atomic mass
How many periods and groups are in the modern periodic table?
How many periods and groups are in the modern periodic table?
7 periods, 18 groups
What do elements in the same group have in common?
What do elements in the same group have in common?
Same outer shell electrons
What does the period number indicate?
What does the period number indicate?
Highest occupied electron shell
Which groups form the s-block?
Which groups form the s-block?
Groups 1-2
How many elements span Period 2?
How many elements span Period 2?
8 elements
Which group are the halogens?
Which group are the halogens?
Group 17
Why does the d-block span 10 groups?
Why does the d-block span 10 groups?
d sub-shell holds max 10 electrons
What was the actual atomic mass of germanium, predicted by Mendeleev as ekasilicon?
What was the actual atomic mass of germanium, predicted by Mendeleev as ekasilicon?
72.61
What is the fundamental organizing principle of the modern periodic table?
What is the fundamental organizing principle of the modern periodic table?
Atomic number