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What is the lightest metal in th periodic table of elements?
Lithium, (Li) element three and the least reactive of the alkali metals group.
What are the three main classes of elements in a periodic table?
Three main classes are:MetalsNon metalsTransition elementsThey are present in periodic table.
Why did Mendeleev leave three spaces on the periodic table?
Because those elements were not known when he formulated his periodic table.
Are more than three-fourths of the elements in the periodic table non-metals?
No it is the other way around. The majority of elements in the periodic table are metals.
Is sulfuric acid on the periodic table?
No, the periodic table only lists elements. Sulfuric acid (H2SO4) is a compound of three elements: hydrogen, sulfur, and oxygen.
What are the three elements that can be classified based on their properties?
Elements are classified as set out in the Periodic Table of the elements. It is NOT clear to what "three" you are referring.
What are the names of three metalliods from the periodic table of the elements?
Si, As and Te
Are the three main classes of elements in the periodic table?
metalsnon metalssemi metals
What are the three main types of elements on the periodic table?
Metals nonmetals and metalliods
What elements has three energy levels?
On a periodic table, Sodium onwards (Na)
What family on the periodic table does glucose belong to?
Only individual elements have a place on the periodic table, but glucose is composed of three different elements: carbon, hydrogen, and oxygen, so it doesn't belong anywhere on the table.
What are three types of categories found in the periodic table?
The three main categories of elements on the periodic table are metals, metalloids, and nonmetals.
