0
all the members of 3rd A group of Periodic Table have 3 electrons in outermost shell they are B ,Al, Ga, Tl and In.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How many electrons do period 3 in periodic table have?
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
How many valence electrons do the boron group have?
Boron is located in group 3A. It is group 13 in modern notation. This set of elements have three valence electrons.Boron is in the 13th group in the periodic table. Elements in this group has 3 electrons in the outermost energy level. That means they have 3 valence electrons.
What group is yttruim in on the periodic table?
Group 3.
How can you determined the number of valance electrons by looking at the periodic table?
Elements are located on the periodic table based off of their atomic number, but the vertical columns they are in (groups) show how many valence electrons they have. If an element were in Group 3 of the periodic table, it would have 3 valence electrons, and so on. This doesn't apply to the Transition Metals, so one should skip straight to Group 14, where the elements all have 4 valence electrons. Group 15 has 5, Group 16, 6, etc. The one exception to this is Helium, which is in Group 18 but only has 2.
What are the group and period number of sodium in the periodic table?
Sodium, Na, is in group 1 period 3 on the periodic table.
Does An atom with a valance of 3 hold 17 electrons?
no, it just has to be in group 5 on the periodic table
How many electrons do period 3 in periodic table have?
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
How do 3a differ from other group of elements?
The group 3 of the periodic table include lanthanides and actinides.
How many valence electrons do the boron group have?
Boron is located in group 3A. It is group 13 in modern notation. This set of elements have three valence electrons.Boron is in the 13th group in the periodic table. Elements in this group has 3 electrons in the outermost energy level. That means they have 3 valence electrons.
Why is chlorine on that spot on the periodic table?
Chlorine- Group VII- It has 7 valence electrons Group VII A- It does not lose electrons from its penultimate shell. Period 3- It has 17 electrons, therefore, electronic configuration is 2,8,7...3 shells
What group is yttruim in on the periodic table?
Group 3.
How many electrons will an element in group 2 of the periodic table have?
That varies, element #3 will have 3, element 4 will have 4, etc. However, they all have 2 valence electrons.
How can you determined the number of valance electrons by looking at the periodic table?
Elements are located on the periodic table based off of their atomic number, but the vertical columns they are in (groups) show how many valence electrons they have. If an element were in Group 3 of the periodic table, it would have 3 valence electrons, and so on. This doesn't apply to the Transition Metals, so one should skip straight to Group 14, where the elements all have 4 valence electrons. Group 15 has 5, Group 16, 6, etc. The one exception to this is Helium, which is in Group 18 but only has 2.
What are the group and period number of sodium in the periodic table?
Sodium, Na, is in group 1 period 3 on the periodic table.
Where is the magnesium located on the Periodic Table Why is it there?
It is in Group 2 because it has two electrons in its outer shell and on row 3 because it has 3 shells in total.
What is one property that is specific to each of the groups on the periodic table?
The number of valence electrons is unique to each group. For example, group 1 has 1 valence electron, and group 3 has 3 valence electrons, and group 7 has 7 valence electrons. This is unique for each group as no other group has that same number of valence electrons.
Where are transition metals located in the periodic table?
Transition metals are located in group 3-12 of the periodic table. The middle of the periodic table.
