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Group No = No.of valence electrons in the outer configuration period No = principle quantum No.(n)of the last shell of outer configuration Eg:carbon EC=1s2 2s2 2p2 No.of valence electrons=4, indicates G.No.is IV n=2, indicates period No. is 2 chlorine EC=3s2 3p5 valence electrons=7,so G.No. is VII n=3,so period No is 3
What else can I help you with?
What are elements in the first group of period table called?
alkali metals
What can you use the Periodic Table of Elements for to predict about the elements?
The Periodic Table can be used to predict the properties of elements based on their location within the table, such as atomic number, group number, and period. It can also help determine the elements' chemical reactivity, bonding tendencies, and physical characteristics. Additionally, the Periodic Table allows for the identification of patterns in the behavior of elements and can aid in predicting their potential uses and interactions in chemical reactions.
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
Which group of the main group elements contains the largest elements - Atomic Radius?
Group-1 has largest atomic radius. It decreases across a period
Is a family of elements also known as a period of elements?
No, on the periodic table of elements a family is a group of elements that are in the same row.Answered by Faustin Obedi
How do you predict an elements group?
they have same numbers of electrons.
What are some important questions to ask about the periodic table?
Some important questions to ask about the periodic table include: What is the organization of elements based on? How are elements grouped together? What are the properties of elements in the same group or period? How does the periodic table help predict the behavior of elements?
What is the group of 17 elements is called?
A group of 17 elements is called a period in the periodic table. This period corresponds to the number of electron shells in an atom within that group. Elements in the same period have the same number of electron shells.
What are elements in the first group of period table called?
alkali metals
What can you use the Periodic Table of Elements for to predict about the elements?
The Periodic Table can be used to predict the properties of elements based on their location within the table, such as atomic number, group number, and period. It can also help determine the elements' chemical reactivity, bonding tendencies, and physical characteristics. Additionally, the Periodic Table allows for the identification of patterns in the behavior of elements and can aid in predicting their potential uses and interactions in chemical reactions.
Are the elements sodium magnesium and silicon in the same period of elements?
No, the elements sodium (Na) and magnesium (Mg) are in Period 3, while silicon (Si) is in Period 3 in the periodic table of elements. Sodium is in group 1, magnesium is in group 2, and silicon is in group 14.
How many group 17 elements are in periodic 3 of the periodic table?
Group 17 elements (Halogens)Fluorine- Period 2Chlorine- Period 3Bromine-Period 4Iodine- Period 5Astatine- Period 6Ununseptium-Period 7There is 1 element from Group 17 that is part of Period 3.
What element is in group 4 and period 2 on the periodic table?
Group 4 elements on the periodic table contain no period 2 elements whatsoever.
How many Group 17 elements are in Period 3 of the Periodic Table?
Group 17 elements (Halogens)Fluorine- Period 2Chlorine- Period 3Bromine-Period 4Iodine- Period 5Astatine- Period 6Ununseptium-Period 7There is 1 element from Group 17 that is part of Period 3.
How does the number of valence electrons for elements across a period?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
Which group of the main group elements contains the largest elements - Atomic Radius?
Group-1 has largest atomic radius. It decreases across a period
