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Most atoms achieve a stable arrangement with eight valence electrons, a configuration known as the octet rule. This stability often occurs through bonding with other atoms, allowing them to either gain, lose, or share electrons to reach this desired state. However, exceptions exist, such as hydrogen and helium, which are stable with just two valence electrons.
What else can I help you with?
What is the number of valance electrons in oxygen?
six valence electrons
How can the number of core electrons be detemined from the periodic table?
Take carbon as an example.Carbon, indicated by it's atomic number, has 6 electrons. The number at the top of carbon's group is the number of valance electrons. Carbon has 4 valance elections.6 total electrons - 4 valance electrons= 2 core electrons in carbon=====================(try another element yourself to see this process )
Number of valance electrons of oxygen?
6 valence electrons 1s2 2s2 2p4 These 6 valence electrons are in the outer shell.
What are valanced electrons?
Good Question Valance electrons are simply the number of electrons in the outer shell of an atom. An easy way to figure this out is to look at the families (the vertical columns of the Periodic Table) and count over from left to right. The number in the ones place is the number of valance electrons that the element will have. The goal is usually to fill the number of valance electrons using the octet rule. The octet rule is filling it to its max so it becomes stable the number is usually eight. There are some exceptions such as helium which has two.
What determines the properties of an element?
The three factors determine the chemical properties of an element:The number and arrangement of electrons in an atomThe number of valence electronsThe number and arrangement of electrons
How can the number of valence electrons be determined from the periodic table?
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
What is the number of valance electrons in oxygen?
six valence electrons
What is the number of valance electrons in sodium?
one
What is the number of valance electrons in halogens?
Seven
What is the number of valance electrons for germanium?
4
How can the number of core electrons be detemined from the periodic table?
Take carbon as an example.Carbon, indicated by it's atomic number, has 6 electrons. The number at the top of carbon's group is the number of valance electrons. Carbon has 4 valance elections.6 total electrons - 4 valance electrons= 2 core electrons in carbon=====================(try another element yourself to see this process )
What is the valance number for fluorine?
7 valence electrons
What is the number of valance electrons in xenon?
There are none.
Is valance electrons equal to the number of protons?
No. Atomic number = number of protons
The number of electrons in the outermost energy level of an atom?
valance
How many Valance electrons in oxygen?
6 Use the periodic table as a guide. As you go across from left to right the number of valence electrons increases. H = 1 Be = 2 B = 3 C = 4 N = 5 O = 6 F = 7 This trend stays the same all the way down each column. Usually periodic tables are marked on the top with roman numerals or something to signify how many valence electrons each element has.
Do ions have an unusual number of electrons?
Cations donate electrons from their valance shell, have less, to reach their octet state. Anions accept electrons into their valance shell, have more, to reach their octet state.
