What is meant by a Group in the Periodic Table?

Answer 1

a group is all the elements in one column. they all share the same chemical properties because they all have the same valence electron structure

Answer 2

A group, also known as a family, is a vertical column in the periodic table of the elements.

Groups are considered the most important method of classifying the elements. In some groups, the elements have very similar properties and exhibit a clear trend in properties down the group - these groups tend to be given trivial (non-scientific) names, e.g. the alkali metals, alkaline earth metals, transition metals, halogens and noble gases. Some other groups in the periodic table display fewer similarities and/or vertical trends (for example Groups 14 and 15). Modern quantum mechanical theories of atomic structure explain that elements within the same group have the same electron configurations in their valence shell, which is the largest factor in accounting for their similar chemical properties.

Answer 3

A group is all the elements in a column on the periodic table. They have the same number of electrons in their outer shell and so have similar properties, though often very different reactivities. Try looking up group I (the alkali metals: Na,K,Li etc) group II (the alkali earth metals: Mg, Ca etc) and group VII (the halogens, Cl,F,Br etc) and you'll see what I mean. (These are generally the most interesting groups, though the others are important too).

The part in the middle of the periodic table are the transition elements and the rules are a little different for them, so I wouldn't worry about them for now.

Answer 4

The periodic table is the most important chemistry reference there is. It arranges all the known elements in an informative array. Elements are arranged left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass.

The different rows of elements are called periods. The period number of an element signifies the highest energy level an electron in that element occupies (in the unexcited state). The number of electrons in a period increases as one traverses down the periodic table; therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases.

Using the data in the table scientists, students, and others that are familiar with the periodic table can extract information concerning individual elements. For instance, a scientist can use carbon's atomic mass to determine how many carbon atoms there are in a 1 kilogram block of carbon.

Answer 5

a group is normally a column of elements, each element have the same number of electrons in their outer shell therefore have the same kind of characteristics
The biggest group is in the middle of the periodic called transition metals.

Answer 6

They have the same number of electrons in the outermost shell, and have some common physical and chemical properties

Answer 7

all elements in the same group have similar properties and all behave in the same way when forced to react