flourine
Elements in a group have the same number of valence electrons and hence they have similar chemical and physical properties.
periodic table
The periodic table is arranged according to the atomic structure of the elements. The atomic structure, specifically the electron arrangement determines the properties of the elements. Elements with the same outer electron configurations have similar properties and are located in the same group.
In Mendeleev's periodic table the elements are arranged in increasing atomic mass and repeating properties whereas in in the modern periodic table the elements are arranged in increasing atomic number and repeating properties.
increasing atomic number and repeating properties
The elements in the Periodic Table are arranged in order of increasing atomic number because it represents the number of protons in the atomic nucleus. It is the number of these protons, and their corresponding number of electrons, that determines the chemical properties of each element. It was found that when the elements lined up, the groups vertically had similar properties. They also increased by atomic mass. The table displays the patterns created by elements of similar properties.
The elements in the Periodic Table are arranged in order of increasing atomic number because it represents the number of protons in the atomic nucleus. It is the number of these protons, and their corresponding number of electrons, that determines the chemical properties of each element. It was found that when the elements lined up, the groups vertically had similar properties. They also increased by atomic mass. The table displays the patterns created by elements of similar properties.
The elements in the Periodic Table are arranged in order of increasing atomic number because it represents the number of protons in the atomic nucleus. It is the number of these protons, and their corresponding number of electrons, that determines the chemical properties of each element. It was found that when the elements lined up, the groups vertically had similar properties. They also increased by atomic mass. The table displays the patterns created by elements of similar properties.
The elements in the Periodic Table are arranged in order of increasing atomic number because it represents the number of protons in the atomic nucleus. It is the number of these protons, and their corresponding number of electrons, that determines the chemical properties of each element. It was found that when the elements lined up, the groups vertically had similar properties. They also increased by atomic mass. The table displays the patterns created by elements of similar properties.
Elements in a group have the same number of valence electrons and hence they have similar chemical and physical properties.
periodic table
The periodic table is arranged according to the atomic structure of the elements. The atomic structure, specifically the electron arrangement determines the properties of the elements. Elements with the same outer electron configurations have similar properties and are located in the same group.
In Mendeleev's periodic table the elements are arranged in increasing atomic mass and repeating properties whereas in in the modern periodic table the elements are arranged in increasing atomic number and repeating properties.
The elements are listed in ascending order, according to their atomic number. The periodic table is arranged in such a way that elements in the same column tend to have similar properties.
The elements in a group have the similar chemical properties dueto presence of same no of electrons in their outermost shell but they differ physically because physical properties are related to their atomic sizes from top to bottom in a group atomic size increases so their physical properties also differ.
increasing atomic number and repeating properties
The modern table is ordered by atomic mass and arranged to put elements with similar chemical properties together.