18
There are 18 main groups in the modern periodic table of elements.
The group number tells you the number of valence electrons in the outer shell. This is important because it is the valence electrons that participate in bonding, and thus in determining the properties of the element.
The modern periodic table of elements contains 18 groups, also known as families. Each group consists of elements that share similar chemical properties and have the same number of valence electrons. These groups are numbered from 1 to 18 from left to right, with elements in the same group exhibiting trends in reactivity and bonding behavior.
4 (including man-made metals)
In the modern version of the periodic table, the elements are arranged in increasing order of the atomic number. The chemical properties of an element can be predicted by its group. For example group 1 elements react violently to give away one electron to form +1 ions where group 18 elements are inert in standard temperature and pressure. This periodic table was introduced by Henry Mosley.
There are 18 main groups in the modern periodic table of elements.
groups
The modern periodic table contains approximately 118 elements.
The group number tells you the number of valence electrons in the outer shell. This is important because it is the valence electrons that participate in bonding, and thus in determining the properties of the element.
There are 18 groups and 7 periods in the modern periodic table.
The modern periodic table of elements contains 18 groups, also known as families. Each group consists of elements that share similar chemical properties and have the same number of valence electrons. These groups are numbered from 1 to 18 from left to right, with elements in the same group exhibiting trends in reactivity and bonding behavior.
Both arrange elements in groups of elements having similar properties.
Both arrange elements in groups of elements having similar properties.
7 periods and 18 groups are there on the modern periodic table.
Representative elements, also known as main group elements, include groups 1, 2, and 13-18 on the periodic table. Group 1 contains alkali metals, group 2 contains alkaline earth metals, and groups 13-18 contain p-block elements. These groups are called representative elements because they display a wide range of chemical properties.
It is called a Group. There are 18 groups in the modern periodic table.
4 (including man-made metals)