A chemical family consists of elements on the periodic table that belong to a group. Elements in a chemical family share similar chemical characteristics or physical properties. For example, depending on their location from left to right on the periodic table, elements in each chemical family also exhibit certain trends in things, such as atomic radii or sizes.Know More
On the periodic table, one can find a group or family by looking down the vertical columns. The group numbers from left to right at the top of the periodic table, which range from 1 through 18, denote the different groups or chemical families. For example, the noble gases are in Group 18. This is a chemical family of elements that share many properties, such as these elements have eight valence electrons and are non-reactive. Some noble gases are argon, helium and neon.
Similarly, there are other different chemical families. The elements in Group 1 are the alkali metals. These elements include sodium and potassium, which also have one valence electron. While Group 2 are the alkaline earth metals like magnesium and calcium, the elements in Group 17 are the halogen gases and include chlorine and fluorine.
Some other examples of chemical families are the transition metal groups and the nitrogen group. The transition elements are the 38 elements belonging to Groups 3 through 12 of the periodic table. The nitrogen group is Group 15.Learn more about Chemistry
Chlorine belongs to the halogen family of elements, which is group seven on the periodic table. Halogens have seven electrons in their outermost energy levels, which makes them extremely reactive. In compounds, halogens usually gain electrons and become negative ions.Full Answer >
The chemical element chromium belongs to group 6 of the periodic table, which is classified as a group of transition metals. Chromium is also categorized as a refractory metal, which exhibits thermal, corrosion and wear resistance.Full Answer >
Aluminum belongs to the Boron family, which is group number 13 on the periodic table of elements. The other elements in the Boron family are the metals thallium, indium, gallium and the semi-metal boron. The element aluminum is a solid metal at room temperature that is assigned the period number 3 and atomic number 13 on the periodic table of elements.Full Answer >
The atomic radii of atoms increase as you travel down a family on the periodic table because of the increased number of electron shells. Each additional shell adds a layer that disrupts the attraction between the protons in the nucleus and the electrons in the shells that pull an atom together.Full Answer >