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I think it's electrons.
The valence electron are involved in the sharing of electrons with the other atoms to form ionic bonds.
Valence electrons are electrons on the outermost "level". And depending on its electron configuration, it plays a role in which if the atom requires to gain or lose electrons in order to become "stable", it can accept or give electrons to another atom in a chemical reaction.
valency is the number electrons a particular atom can donate or accept with favourable change in electronic configuration and minimal energy increase (or maximum lowering of energy). Covalency is the maximum number of bonds that it can form using its empty orbitals, mostly p, d and f-orbitals by sharing or accepting electrons.
iron ion will have the same number of protons as iron atom because while bonding there is loss of electrons only and protons play no role. thus, the number of protons will be same..
I think it's electrons.
The valence electron are involved in the sharing of electrons with the other atoms to form ionic bonds.
Electrons.
Valence electrons are electrons on the outermost "level". And depending on its electron configuration, it plays a role in which if the atom requires to gain or lose electrons in order to become "stable", it can accept or give electrons to another atom in a chemical reaction.
According to the Octet Rule, the most valence electrons any atom can have is 8. Atoms naturally want to meet this rule either by losing or gaining enough electrons to have a total of 8 valence electrons. The nobel gases have exactly 8 valence electrons. The neither need to lose or gain any and therefore do not play well with others. The losing or gaining of valence electrons determines the stability and reactivity of the element.
They play a HUGE role. This is because this is the most fundamental principle that governs chemical reactions. For example, the classic tablesalt compound. Sodium (Na) has a single valence electron, while Chlorine (Cl) has seven valence electrons. Elements of this size (atomic mass) usually want to have a total of 8 valence electrons. Well guess what? Sodium wants to get rid of that bothersome electron to have a complete shell rather than another incomplete shell. Chlorine wants to fill its shell so it happily takes it. Now Sodium has a filled shell and so does Chlorine. This means that sodium is positive and the chlorine is negative and so they bond from the difference in charge. Voila we have tablesalt. This is just one of many examples showing the importance of valence electrons in chemistry. This was an example of an ionic bond because an electron was completely given and not shared like in a covalence electron. The term "covalence" implies that the valence electrons will co-exist between the atoms, like in water (H20).
Valence electrons are the electrons on the outer most shell of a neutral atom; they are used when forming chemical bonds with other atoms. Because of the octet rule - which is a chemical bonding theory based on the assumption that in the formation of compounds, atoms exhibit a tendency for their valence shells to either be empty or a full 8 electrons (octet) - atoms that do not have an octet need to either get rid of their electrons or gain more electrons. Atoms combine with other atoms in order to stabilize themselves. For example if sodium and chlorine were to combine sodium would need to lose 1 valence electron while chlorine would need to gain 1 valence electron. Na + Cl ------> NaCl FYI NaCl, sodium chloride, is table salt. *NB* All elements react in order to become stable and either get an octet or empty their shell. They are all attempting to be like the noble gases, which are hellium, neon, argon, krypton..etc. FYI noble gases are all stable and have 8 valence electrons.
valency is the number electrons a particular atom can donate or accept with favourable change in electronic configuration and minimal energy increase (or maximum lowering of energy). Covalency is the maximum number of bonds that it can form using its empty orbitals, mostly p, d and f-orbitals by sharing or accepting electrons.
the particulat part is the electrons. They can from ionic bonds or covalant bonds. They constantly change the chemical properties of the atoms.
what role does lattice energy play in forming an ionic compound?
Catalyst
iron ion will have the same number of protons as iron atom because while bonding there is loss of electrons only and protons play no role. thus, the number of protons will be same..