In ancient times, the four (or five, depending if you were in Europe or Asia) elements, fire, water, earth, and air (In Asia, it was fire, water, air, wood, and metal) were thought to make up all things. In modern day, elements are still though to compose all matter, but we know that there's a lot more than just four or five (and that none of the classic elements were actually elements, except for metal, which could be an element. Most classical elements are what we now call compounds)
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
all elements are listed in a verticle column but each column indicates a family such as group seven, the halogens, or a group of similar elements such as the oxygen family or nitrogen family.
Physical and chemical properties change somewhat regularly across a period. Elements that are close to each other in the same period tend to be more similar than elements that are father apart.
Elements located in groups 4 - 12 in the modern periodic table are considered as transition elements. Transition elements should not be confused with the d-block elements which are from groups 3 - 12.
by groups and periods
In ancient times the elements meant : water, fire, earth, and air. However the modern definition of elements is a pure substance that cannot be broken down into a simpler substance.
Both arrange elements in groups of elements having similar properties.
Both arrange elements in groups of elements having similar properties.
It groups together elements with similar properties.
They aren't.
A tribute is the ancient equivalent of the modern day tax.
No, they are not elements in the modern, chemical sense. They were called elements in the ancient Greek philosophical system, which imagined everything to be made of them.
ya mum
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
chain migration
All the contestants would compete for an Olympic medal !
Elements are those pure substances which are formed by only one kind of atoms.