0
Selenium. As you go across the groups, not counting the transition metals, a valence electron is added.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is in period 3 and has 5 valence electrons?
the element phosphorus
Element 3 lithium has one valence electron and element 4 beryllium has two valence electrons Element 5 boron has how many valence electrons?
Boron has 3 valence electrons.Boron has 3 valence electrons.
What is the number of valence electrons the element boron?
Boron has 3 valence electrons out of five total electrons.
How many valence electrons is in the element boron?
3
Which element in the 3 period has 3 valence electrons?
Aluminum, element number 13. You can tell how many valence electrons an element has by looking at its group (column). This rule only applies for the metals and nonmetals, however. In other words, columns IA, IIA, (skip the middle section starting with Sc and ending with Zn) IIIA, IVA, VA, VIA and VIIA have 1, 2, 3, 4, 5, 6 and 7 valence electrons, respectively.
What is in period 3 and has 5 valence electrons?
the element phosphorus
Element 3 lithium has one valence electron and element 4 beryllium has two valence electrons Element 5 boron has how many valence electrons?
Boron has 3 valence electrons.Boron has 3 valence electrons.
What is the expected number of valence electrons for a group 3 A element?
The expected number of valence electrons for a group 3 A element is 5 number of valence electrons.
How many valence electrons do the Group13 element have?
They have 3 valence electrons unless they are isotopes.
What is the number of valence electrons the element boron?
Boron has 3 valence electrons out of five total electrons.
What element has 3 valence electrons and 3 energy levels?
What has three energy levels and six valence electrons
What element has 3 energy levels and 3 valence electrons?
What has three energy levels and six valence electrons
How many valence electrons is in the element boron?
3
The number of electrons in atoms determine in element's propertices?
the valence electrons cause the chemical reations. the valence electrons decide that element attract to which element.
How many valance electrons in an atom of the element gallium?
3 valence electrons
If an element has 3 electron energy levels rings and 3 valence electrons what element is it?
Aluminium
What element has 3 valence electrons and isn't a metal?
Boron
