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1. The wrong placing of the element Hydrogen in the periodic table. It should be placed on the right side of the Periodic Table, on the group of non-metals because Hydrogen is a non-metal element but in the periodic table it is placed on metals element .
Wiki User
∙ 13y ago
Wiki User
∙ 12y agothe position of the hydrogen atom was in two groups: group 1 and 7.
position of isotopes was also not correct.
potassium should have been placed before argon.
according to his table, K fell in the group of noble gases.
similar elements are placed in the same group, along with lithium, sodium and potassium.
similar elements like copper, Mercury, silver and thalium were placed in different groups.
answered by aparna h rao
student of class ix
poorna prajna high school
yelahanka, Bangalore
Wiki User
∙ 12y agoposition of hydrogen and helium
juanpablo leon
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Modern periodic table is invented by?
Modern periodic table is invented by Henry Moseley.
What best describes the modern periodic table?
Periodic table of elements.
Is The modern periodic table is organized by atomic number?
Yes.The modern periodic table is organized by atomic number. The elements properties are found to be periodic.
Who discovered the modern periodic table Was he Mos lay or Neil Bohr?
Moseley discovered modern periodic table. It was not given by Bohr.
What known element corresponds to eka-aluminum on the modern periodic table?
Gallium corresponds to eka-aluminum on the modern periodic table.
How many rows are there in Modern periodic table?
There are 7 periods in the modern periodic table.
How modern periodic law removed the defects of mendeleevs system of classification?
The properties of elements are the periodic function of their atomic numbers. REMOVAL OF DEFECTS OF MENDELEEV'S PERIODIC TABLE periodic table obtained on the basis of increasing atomic numbers has removed defects of Mendeleev's periodic table . 1) POSITION OF ISOTOPES : since the isotopes of the same elements have the same atomic number, they are given the same place in the table. 2) POSITION OF RARE EARTHS: These elements are separately placed at the bottom of table . similarly Acton elements ( which were discovered after Mendeleev ) are also placed at the bottom of the periodic table. 3) ANOMALOUS PAIRS. the arrangement according to the atomic number show that their placements are correct.
How many periods are there on the modern periodic table?
The modern periodic table has seven periods.
Modern periodic table is invented by?
Modern periodic table is invented by Henry Moseley.
What best describes the modern periodic table?
Periodic table of elements.
What is the modern periodic table based on?
Modern periodic table is based on modern periodic law which states that physical and chemical properties of elemnts are periodic function of their atomic numbers.
How periodic law leads the foundation of modern periodic table?
modern periodic law
Who developed your modern periodic table in 1869?
Dmitri Mendeleev developed the modern periodic table in 1869.
How many groups and periodic are on the periodic table?
7 periods and 18 groups are there on the modern periodic table.
Who assembled the periodic table?
The modern long form of periodic table was constructed by Neils Bohr based on modern periodic law proposed by Moseley.
Is the modern periodic table organized by atomic number?
Yes.The modern Periodic Table is organized by atomic number. The elements properties are found to be periodic.
Is The modern periodic table is organized by atomic number?
Yes.The modern periodic table is organized by atomic number. The elements properties are found to be periodic.
