0
Valence electrons are the electrons in the furthest electron shell from the nucleus.
For the first three rows, essentially, the number of valence electrons is the number of squares the element is away from the beginning of the row at the left.
For example. Sodium is the first (group 1) it has 1 valence electron. Magnesium is the second, it has 2 valence electrons.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoIn Group 1 of the Periodic Table, those elements all have 1 valence electron.
The group number of the representative elements (1A through 8A) is equal to the number of valence electrons the elements have in that group.
Wiki User
∙ 13y agoGropu one elements have one valence electron.
Wiki User
∙ 13y agoAll elements in group one have one valence electron.
Wiki User
∙ 12y agoIf "group 1" means "column 1 of a wide form periodic table", the answer is 1.
Wiki User
∙ 12y agoThe elements in Group 1 have one valence electron in their outermost s orbital.
Wiki User
∙ 11y agoGroup 1 has one valence electrons.
Wiki User
∙ 16y ago2
Wiki User
∙ 16y ago23
Add your answer:
Earn +20 pts
Which group contains least number of valence electrons?
Group 1 with one valence electrons
How many valence electrons does group one a have?
One valence electrons
Why do group one elements have similar properties?
;need the same number of electrons to fill their valece shells ;have the same number of 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.
How can you determine the number of valence electrons in an atom?
You can determine how many valence electrons an atom has by what family the element of the atom is in. For instance, if the element is in family 8A, the number of valence electrons will be 8. Or, if the element is in family 2A, the number of valence electrons for the atom will be 2. So, whatever number family the atom is in, the number of valence electrons equals that.
What is the number of valence electrons for group 2 elements?
Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).
Which group contains least number of valence electrons?
Group 1 with one valence electrons
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.
What is the number of valence electrons for the elements in group 1?
The elements in Group 1 have one valence electron in their outermost s orbital.
How many valence electrons does group one a have?
One valence electrons
What do you notice about the number of valence electrons as you move down or up a group or column in the Periodic Table?
The number of Valence electrons of an element is the same number as the element's group number. E.g. Hydrogen is in Group 1. Therefore it has 1 valence electron. Another e.g. Oxygen is in Group 6. Therefore it has 6 valence electrons.
Why do group one elements have similar properties?
;need the same number of electrons to fill their valece shells ;have the same number of valence electrons
When moving down a group ( family) in the periodic table the number of valence electrons?
When moving down a group, the number of valence electrons do not change. This similarity yields the elements in the same groups to have same chemical properties. For example, elements in group 17 obtain one electron to stabilize as -1 ion.In a group, all the elements have a same number of valence electrons. So their chemical properties are equal. But the physical properties vary.Valence electrons are the electrons in outermost shell.The valence electrons remain same in a group. For example-Group-1 elements have 1 valence electron.
The number of valence electrons found in an atom of Group A element is equal to?
If by group A u mean Group 1, that would be one. Except for the transition metals, the # of valence electrons is equal to the one's place of the group #, except for helium because it can only have 2 and it is in the 8 group, but that is the group that has the most it can have.
Why do elements in a group have the same number of valence electrons?
The elements in a group, also called a family, have similar properties, one of which is the same number of valence electrons. This accounts for why the elements in a group have similar properties.
How many valence electrons can an atom have?
That depends on the element in question. Atoms can have anywhere from 1 to 8 valence electrons. For the main group elements, Groups 1,2,13-18, the number of valence electrons are the number in the one's place in their group number, as follows: Group 1 Elements: 1 valence electron Group 2 Elements: 2 valence electrons Group 13 Elements: 3 valence electrons Group 14 Elements: 4 valence electrons Group 15 Elements: 5 valence electrons Group 16 Elements: 6 valence electrons Group 17 Elements: 7 valence electrons Group 18 Elements: 8 valence electrons The transition metals, Groups 3 - 12, are more complicated because they are adding d electrons, some of which behave like valence electrons, and many transition metals can have different numbers of valence electrons. For example manganese can have anywhere from 2 to 7 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.
