Which group of elements has 7 valence electrons?
Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine.
What is an element with 7 electrons?
Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Nitrogen is N.
Which group has 7 electrons in outermost shell?
Three elements which have seven valence electrons in their outermost shell are fluorine, chlorine, and bromine (or any other group 17 elements / halogens). Their non-metallic character decreases while atomic size increases down the group.
What is the Group 7 element called?
the halogens
The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table . Chlorine, bromine and iodine are the three common Group 7 elements.
What element has 7 valence electrons and 6 shells?
Nitrogen has 7 electrons — 2 in the first shell, and 5 in the second shell (so five valence electrons). Oxygen has 8 electrons — 2 in the first shell, and 6 in the second shell (so six valence electrons). Fluorine has 9 electrons — 2 in the first shell, and 7 in the second shell (so seven valence electrons).
Which element has an atomic number of 7?
Nitrogen
Nitrogen is a chemical element which has the symbol N and atomic number 7.
What has 7 protons and 7 neutrons?
Nitrogen is an atom that has 7 protons, 7 neutrons, and 7 electrons.
Which of the following has a completely filled outermost shell?
Solution 2 Helium (He), neon (Ne) and argon (Ar) are three elements (inert gases of group 18) that have a completely filled outermost shell.
How many electrons are there in the outermost shell of group 2 elements?
The second group of the periodic table is the group concerned with the filling of the s orbital. Thus, the element in the second group of the periodic table will have an outermost s orbital filled with two electrons of different spins. Hence, the number of valence electrons in group 2 is two.
Why is group 7 called halogens?
Halogen means ‘salt-forming compounds’. Group 7 elements when they react with metal forms salt, hence the name halogen.
Is group 7 metal or nonmetal?
Group 7 contains non-metal elements placed in a vertical column on the right of the periodic table . The elements in group 7 are called the halogens .