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The gaps were left for elements which were not discovered at that time. The properties which were estimated for the elements at that time was same as found later in those elements.
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What is unique about the halogens on the periodic table?
Halogens are the most reactive non-metals on the periodic table.
Does each element have a unique name and formula on the periodic table?
Yes, each element on the periodic table has a unique name and chemical symbol.
What is the unique letter of an element on the periodic table?
Symbol
How many female are in periodic table?
The periodic table is a list of elements, unique atoms. There's nothing about them that can be described as male or female.
How do you use the word periodic table in a scientific sentence?
The periodic table organizes elements based on their unique properties and relationships to one another.
Why are lanthandies placed below the periodic table?
Lanthanides and actinides are placed below the periodic table because of their unique physical and chemical properties.
How different are elements on the periodic table?
Very different. Each element is unique.
What is the name of the table of elements?
A Periodic table The Periodic Table of the Elements.
How are the elements arranged?
atomic number
What is unique about mercury and bromine?
They are the only two elements on the periodic table that are liquids at room temperature.
Why is uranium on the periodic Table of elements?
Because it is elemental. That is: it is not an alloy. It has a unique number of protons and neutrons.
What is unique about group 8 in periodic table?
Group 8 on the periodic table is referred to as the Noble gases because they all have complete electron shells meaning it is very unlikely for them to react with other substances.
