4. What is the difference between alkali metals and alkaline earth metals? Ans.Alkaline earth metals are the Group 2 elements in the periodic table. Despite having some similarities in their physical properties, they are placed in different groups mainly because the alkaline earth metals have two...
78.1. THE PERIODIC TABLE 元素周期表 (图片可点击放大) In this section, we will explore the periodic table, which organizes chemical elements and provides valuable information about their properties and relationships. Understanding the periodic...
Periodic Table Properties Lesson Summary Register to view this lesson Are you a student or a teacher? I am a student I am a teacher FAQ What are the 8 groups of the periodic table? The 8 groups of the periodic table are the Alkali Metals, Alkaline Earth Metals, Boron Family, Carbon Fam...
Periodic Table Properties Lesson Summary Register to view this lesson Are you a student or a teacher? I am a student I am a teacher FAQ What are the 8 groups of the periodic table? The 8 groups of the periodic table are the Alkali Metals, Alkaline Earth Metals, Boron Family, Carbon Fam...
The periodic table groups elements into families based on their electron configurations. For example, the alkali metals are in group 1, the halogens are in group 17, and the noble gases are in group 18. Elements in the same family have similar chemical properties. Periods The rows of element...
In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in vertical columns. Elements of the same period have the same number of electron shells; with each group across a period, the elements have one more ...
1. Alkali metals 2. Alkaline earth metals 3. Rare earth 4. Radioactive 5. Transition metals 6. Halogens 7. Inert gases In this way, we can study the fundamental properties of elements and predict their chemical behaviour. Learn about how the periodic table works, through this animated learn...
Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called the ‘periodic law’ in their properties, in which elements in t
There are 18 groups (columns) in the periodic table. Group 1 (also known as the alkali metals) is the column on the far left of the table. Elements in the same group have similar, but not identical characteristics. This is because they all have the same number of electrons in their ou...
Periodic table - Elements, Properties, Periodicity: The periodicity of properties of the elements is caused by the periodicity in electronic structure. The noble gases are chemically unreactive, or nearly so, because their electronic structures are stabl