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How does chemical activity change in Group 7 and What is chlorine used for?
Chemical activity decreases down Group 7 (halogens) as atomic size increases. Chlorine, a Group 7 element, is used for water purification, manufacturing of plastics and pesticides, and in the production of bleach and disinfectants due to its strong oxidizing properties.
What is a group 7 compound?
A group 7 compound refers to a chemical compound that contains an element from group 7 of the periodic table, which is also known as the halogens group. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Group 7 compounds are known for their reactivity and tendency to form salts.
How were chemists able to predict the chemical properties of technetium?
Chemists were able to predict the chemical properties of technetium by studying the periodic table and observing trends in the elements around it. Technetium is located in the transition metals group, so it was predicted to have similar properties to other elements in that group with its 7 valence electrons. Additionally, its position in the periodic table suggested that it would exhibit variable oxidation states.
Why iodine must appear in group 7 in the periodic table?
Iodine appears in group 7 of the periodic table (halogens) because it has 7 valence electrons. This property makes it chemically similar to other elements in the group, such as fluorine, chlorine, and bromine. Grouping elements with similar chemical properties helps in organizing the periodic table.
Which chemical element is represented by the symbol At?
At stands for astatine which is in group 7 of the periodic table.
How does chemical activity change in Group 7 and What is chlorine used for?
Chemical activity decreases down Group 7 (halogens) as atomic size increases. Chlorine, a Group 7 element, is used for water purification, manufacturing of plastics and pesticides, and in the production of bleach and disinfectants due to its strong oxidizing properties.
How does activity change in group 7?
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What is the chemical bond for sodium phosphate?
Na ---> group 7
Whci kchemical family has 7 valence electons?
halogens- its group (family) 7 on the periodic table
What period is the berkelium?
Berkelium is in the period 7 of the Mendeleev table of chemical elements and in the group of actinides.
Why group 7 element by their self do not have many uses?
This situation is normal. The number of chemical elements is smaller compared to the number of chemical compounds.
What is the symbol of the element in group 7 period 5?
The element in group 7 period 5 is element 43, Technetium (Tc). Its chemical symbol is Tc.
What is a group 7 compound?
A group 7 compound refers to a chemical compound that contains an element from group 7 of the periodic table, which is also known as the halogens group. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Group 7 compounds are known for their reactivity and tendency to form salts.
How were chemists able to predict the chemical properties of technetium?
Chemists were able to predict the chemical properties of technetium by studying the periodic table and observing trends in the elements around it. Technetium is located in the transition metals group, so it was predicted to have similar properties to other elements in that group with its 7 valence electrons. Additionally, its position in the periodic table suggested that it would exhibit variable oxidation states.
What are the 5 characteristics of chemical change?
During a chemical change the structure of molecules (as chemical composition) is changed. Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
Why iodine must appear in group 7 in the periodic table?
Iodine appears in group 7 of the periodic table (halogens) because it has 7 valence electrons. This property makes it chemically similar to other elements in the group, such as fluorine, chlorine, and bromine. Grouping elements with similar chemical properties helps in organizing the periodic table.
What is the oxidation number of group 7?
Group 7 elements, also known as the halogens, have an oxidation number of -1 when they are in compounds. This is because they have 7 valence electrons and tend to gain one electron to achieve a full outer shell in chemical reactions.
