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7A is the 17th period in the modern Periodic Table. It contains halogens.Fluorine,chlorine,bromine are few examples.
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoGroup 7a is the old code for the group 7.
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Why halogens are placed in group 7A in the periodic table?
because 7
Are bromine and chlorine in group 7a of the periodic table?
Bromine and chlorine are in group VII A, which could also be designated Group 7a, of the narrow form periodic table that was commonly used before 1980. Most chemists now prefer a wide form periodic table, in which these elements are in column 17.
What chemical family does iodine fall under?
Iodine is in the 7A column of the periodic table, a member of the halogen family.
What is the evidence that suggests that hydrogen should be in the first column of the periodic table?
Hydrogen is a unique element of the Periodic Table. Due to its similarities in properties it can be placed at the top of group 1A or 4A or 7A.
Group 7 in the periodic table?
Group 7A elements of the periodic table is also known as halogens having one electron in their valence shells.These elements are : Flourine, Chlorine, Bromine, Iodine and astatine.
Groups in 7a on the periodic table are known as?
Halogens
Why halogens are placed in group 7A in the periodic table?
because 7
Are bromine and chlorine in group 7a of the periodic table?
Bromine and chlorine are in group VII A, which could also be designated Group 7a, of the narrow form periodic table that was commonly used before 1980. Most chemists now prefer a wide form periodic table, in which these elements are in column 17.
What element on the periodic table is most radioactive and why?
7A, they are unstable, because they don't have balance number inside the protons.
What chemical family does iodine fall under?
Iodine is in the 7A column of the periodic table, a member of the halogen family.
How does bromine relate to the periodic table?
Bromine is an element on the periodic table. It has an atomic number of 35. It can be found near the right side of the table. Bromine is located in the Halogens group, which is group 7A or 17, and is also in period 4.
What is the evidence that suggests that hydrogen should be in the first column of the periodic table?
Hydrogen is a unique element of the Periodic Table. Due to its similarities in properties it can be placed at the top of group 1A or 4A or 7A.
Group 7 in the periodic table?
Group 7A elements of the periodic table is also known as halogens having one electron in their valence shells.These elements are : Flourine, Chlorine, Bromine, Iodine and astatine.
What family does fluorine belong to in the period table?
Halogen
In a periodic table that included electron dot diagrams in which column would the diagrams contain more dots Group 3A the boron family or Group 7A the halogens?
group 7A the halogens.
Where are the halgens located on the periodic table?
the halogens are located in group 17/ group 7A
When Group 7A elements in a periodic table form ions they lose or gain protons?
The elements in group 7A or 17, gain one electron during ionic bonding, or share one electron when undergoing covalent bonding.
