by which collom their on in the table of elements. the far right collom has 8, then every collom to the left you minus one, exept the middle.. they all have 2.
No, the number of valence electrons is not always equal to the number of protons. The number of valence electrons is determined by the group number of an element on the periodic table, while the number of protons is the atomic number of the element.
Valence electrons are on the external shell.
Boron has 3 valence electrons out of five total electrons.
Helium has 2 electrons (total of 2 electrons and 2 valence electrons)
The velence electron will vary for element to element and can have 1 to 8 valence electrons.
I believe there is 8 electrons in the outer valence
The number of core electrons can be determined from the periodic table by identifying an element's atomic number, which indicates the total number of electrons. Core electrons are those that are not in the outermost shell; for main group elements, this typically includes all electrons in completed inner shells. To find the number of core electrons, you can subtract the number of valence electrons (the electrons in the outermost shell) from the total number of electrons. For example, oxygen (atomic number 8) has 6 core electrons and 2 valence electrons.
Calcium oxide (CaO) consists of calcium (Ca) and oxygen (O). Calcium, a group 2 element, has 2 valence electrons, while oxygen, a group 16 element, has 6 valence electrons. Therefore, in total, CaO has 2 (from Ca) + 6 (from O) = 8 valence electrons.
To find the valence electrons in a Bohr model, first identify the element's atomic number, which indicates the total number of electrons. In the Bohr model, electrons are arranged in specific energy levels or shells around the nucleus. The outermost shell corresponds to the valence electrons; count the electrons in this shell to determine the number of valence electrons. For example, if the outer shell has 5 electrons, the element has 5 valence electrons.
To find the total number of valence electrons in ALAS (which consists of aluminum (Al), sulfur (S), and four oxygen atoms), we first determine the valence electrons for each element. Aluminum has 3 valence electrons, sulfur has 6, and each oxygen atom has 6 valence electrons, totaling 24 for four oxygens. Therefore, the total number of valence electrons in ALAS is 3 (Al) + 6 (S) + 24 (O) = 33 valence electrons.
The element with a valence electron configuration of 3s^2 3p^4 is sulfur (S), which has 16 electrons in total.
One.Hydrogen has only 1 electron in total, and it is also a valence electron.