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Copy of BBC Chemistry - A Volatile History (Ep. 2): The Order of the Elements (5/28/2026)
By Jason Poe
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Last updated about 3 hours ago
19 questions
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Question 1
1.
In 1869, who had the idea for the periodic table?
Question 2
2.
How many natural elements are there?
Question 3
3.
Salt is always made of what?
Question 4
4.
What instrument is used to see atoms?
Question 5
5.
Berzelius did what?
Question 6
6.
Dobereiner looked at element’s chemical properties and noted there were groups of 3 called:
Question 7
7.
Lithium, Sodium and Potassium are called _______________Metals. Describe their reaction with water.
Question 8
8.
Canizzaro finally produced precise __________ ________
Question 9
9.
Arranged in order of atomic weight, Newlands noted that every _______ element had _______ properties. He called this the Law of _______
Question 10
10.
How did Mendeleev’s “chemical solitaire” find the patterns in the Periodic table?
Question 11
11.
Why was he using an incomplete deck of cards?
Question 12
12.
He combined _______ and _______ to design his table
Question 13
13.
Most of the elements are _______
Question 14
14.
To make it work he had to do what?
Question 15
15.
When the missing elements were discovered did they match his predictions?
Question 16
16.
Kirchoff and Bunsen used spectroscopes examine the _______ Spectrum given off by elements?
Question 17
17.
Bohr said _______ orbit the nucleus in fixed shells holding a set number of electrons.
Closest shell can only hold _______
Second can hold _______
Number of electrons in the _______ shell determines the properties of the atom.
To be _______ atoms want to have a _______ outer shell.
Question 18
18.
The heaviest known natural element is _______
Question 19
19.
Atomic _______ is the number of protons in the nucleus.
Only whole numbers of protons exist, so there are only _______ natural elements ending at _______