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How was the person who devised the first periodic table able to predict the behavior of elements such as gallium scandium and germanium that had not even been discovered yet?
Wiki User
∙ 15y ago
The reason the Periodic Table was created in the first place was to illustrate the "periodic" physical properties of the known elements of the time. Because of this, the properties of elements that were "missing" from the table could be extrapolated from the periodic trends seen in the known elements.
Wiki User
∙ 15y ago
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What were the three missing elements in the periodic table?
See "Mendeleev's predicted elements" in Wikipedia The answers are: scandium (Sc - 21), gallium (Ga - 31), technetium (Tc - 43), and germanium (Ge - 32) He temporarily named them to be: ekaboron (Eb), ekaaluminium (El), ekamanganese (Em), and ekasilicon (Es).
Why did Mendeleev leave blanks in his early version of the periodic table?
At the time the periodic table was first devised, there were many elements that had not yet been discovered. Their existence could be inferred, but they couldn't actually be put into the table until they were discovered.When the periodic table was first devised, there were lots of elements that had not been discovered yet.
What metaloid elements are in period 4?
There is not one but there are two metalloids in Period 4 of the periodic table. They are germanium and arsenic. There is a link below to the Wikipedia post on the metalloids so you can have a look at them.
What do this elements have in common carbon silicon germanium tin lead?
they are all in the same group (column) in the Periodic Table
How many blank spaces were in mendeleeves periodic table?
There were 3 blank spaces in mendeleev's Periodic Table. He left it for the elements which were not discovered at that time.
What did Mendeleev predict about the periodic table?
The gaps in the first periodic elements described those elements which were not discovered at that time. Eg-silicon,germanium etc
What elements add later to the periodic table?
germanium
What does Ge stand for in the periodic table of elements?
Germanium
What are the semiconduter elements in periodic table?
Mostly Silicon and Germanium.
What element in the periodic table might have been discovered in Germany?
Germanium
What elements did Dmitri mendeleev discover?
In 1869, a total of 63 elements had been discovered by. A few were gases. Two were liquids. Most were solid metals.
Are the element sin the periodic table the only elements discovered?
Yes. The elements in the Periodic Table are the only elements that have been discovered. However, we are still discovering and synthesising more elements.
Which metalloid is in the fourth period and same group as carbon?
In the Periodic Table, a group is a column of elements and a period is a row. The element in the 14th column and fourth row is germanium.
What were the three missing elements in the periodic table?
See "Mendeleev's predicted elements" in Wikipedia The answers are: scandium (Sc - 21), gallium (Ga - 31), technetium (Tc - 43), and germanium (Ge - 32) He temporarily named them to be: ekaboron (Eb), ekaaluminium (El), ekamanganese (Em), and ekasilicon (Es).
Why did Mendeleev leave blanks in his early version of the periodic table?
At the time the periodic table was first devised, there were many elements that had not yet been discovered. Their existence could be inferred, but they couldn't actually be put into the table until they were discovered.When the periodic table was first devised, there were lots of elements that had not been discovered yet.
Who discovered a pattern to the elements of the periodic table in 1869?
Demitri Mendeleev discovered a pattern to the periodic table in 1869.
What are the elements of a cola that can be found in your periodic table?
All of them, the periodic table has all of the elements the human discovered or made..
