The Periodic Table (VCE SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In what year did Dimitri Mendeleev develop the first periodic table?
In what year did Dimitri Mendeleev develop the first periodic table?
1869
Which element's discovery validated Mendeleev's predictions five years after his periodic table?
Which element's discovery validated Mendeleev's predictions five years after his periodic table?
Gallium
How many valence electrons does oxygen (group 16) have?
How many valence electrons does oxygen (group 16) have?
6
Why do elements in the same group have similar chemical properties?
Why do elements in the same group have similar chemical properties?
Same number of valence electrons
What is the key characteristic of noble gases (group 18)?
What is the key characteristic of noble gases (group 18)?
Very low reactivity
What does the period number indicate about an element?
What does the period number indicate about an element?
Number of occupied electron shells
Which groups make up the p-block of the periodic table?
Which groups make up the p-block of the periodic table?
Groups 13-18
How many elements are currently known in the periodic table?
How many elements are currently known in the periodic table?
118
How many elements have been identified as endangered due to limited supplies?
How many elements have been identified as endangered due to limited supplies?
Over 40
What was the first synthetic element ever made?
What was the first synthetic element ever made?
Technetium in 1936