What is the meaning of group of elements?
What is the meaning of group of elements?
Group, in chemistry, a column in the periodic table of the chemical elements. In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts.
What are the main groups in the periodic table?
See About the Periodic Table for information on how Group can be used to characterize an element.
- Group 1: alkali metals, or lithium family.
- Group 2: alkaline earth metals, or beryllium family.
- Group 3: the scandium family.
- Group 4: the titanium family.
- Group 5: the vanadium family.
- Group 6: the chromium family.
Is CA a main group element?
Explanation: Ca is a main group element in period 4, group 2 of the periodic table, in the s-block. O is a main group element in period 2, group 16 of the periodic table, in the p-block. Pb is a main group element in period 6, 14 of the periodic table.
What is group number of elements?
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 2 and 3) are not numbered. For example, group 16 is also described as the “oxygen group” and as the “chalcogens”.
What is the difference between group A and group B elements?
What is the basic difference between group A and group B elements from the electronic configuration point of view. In group A elements, the added electrons goes to the outermost shell. In group B, the additional electron goes to penultimate shell.
What are Group 1A elements called?
Alkali Metals
What are the 3 classes of elements?
Three classes of elements are metals, nonmetals, and metalloids. Across a period, the properties of elements become less metallic and more nonmetallic. Metals are good conductors of heat and electric current.
What are Group 7A elements called?
Halogens
What is the charge of Group 1A?
+1
Which family of elements is the most reactive?
alkali metals