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Actually, there is only one electron in a hydrogen atom, which has the atomic number 1.
The existance of exactly two electrons in the innermost shell can be described by Shrodinger's Wave Equation. According to the Wave Equation, there is only one atomic orbital existing in the principal quantum number 1 energy level which is also known as 1s. Any atomic orbital can hold 2 electrons at most and it is the reason that every atom other than hydrogen have exactly 2 electrons in their innermost energy level.
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When will an atom give up an electron?
When less than half of the outer energy level is filled!
Why is the electron BF3 deficient?
The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
Would you expect the second electron gain enthalpy of O as positive more negative or less negative than the first Justify your answer?
The second electron gain of an oxygen atom would be expected to be less negative. The reason for this outcome is that the oxygen atom gaining a second electron already has one electron and thus a negative charge. This negative charge repels the second electron to some extent, making the enthalpy of this process less negative than when the first electron was added to the neutral oxygen atom.
Which particle of an atom has the less mass?
The Electron.
What is the difference between a filled and an unfilled orbital?
A filled orbital has either 2 electrons (if it is the first shell of an atom) or 8 electrons. This is the highest number of electrons these shell can hold Every orbital tends to complete itself to form a stable element. A filled orbital could be any orbital, either 1st, 2nd, second last or last shell of the atom. An unfilled orbital always has atleast one less electron than the shell can hold. It is always the last shell of an atom and always makes the atom unstable as atom tends to acquire inertness by trying to get this unfilled oribital filled.
When will an atom give up an electron?
When less than half of the outer energy level is filled!
Why is bf3 electron deficient?
The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
Why is the electron BF3 deficient?
The central atom B has less than 8 electrons in the valence shell. BF3 has a tendency to accept electron pair.
How are valence electrons imoprtant?
Valence electrons can determine the reactivity of the atom. An atom with a full shell of valence electrons, like neon, will be less reactive than an atom with only one electron in its valence shell, like sodium.
Where are valence electrons found?
Valence Electrons are the electrons that are located furthest away from the atom itself in the outermost electron shell. They are located on the last energy level also known as the valence level.
What is the difference between a Fluoride ion and a Fluorine atom?
The fluoride atom has 7 electrons in its outer shell (9 in total) but the ion of fluorine has any number of electrons in the outer shell. eg. F+ = the normal fluorine atom but with one less electron.
Can the first shell have less electorns than the maximum number?
yes, the first shell has 2 slots for electrons. Hydrogen has only 1 electron.
Would you expect the second electron gain enthalpy of O as positive more negative or less negative than the first Justify your answer?
The second electron gain of an oxygen atom would be expected to be less negative. The reason for this outcome is that the oxygen atom gaining a second electron already has one electron and thus a negative charge. This negative charge repels the second electron to some extent, making the enthalpy of this process less negative than when the first electron was added to the neutral oxygen atom.
Which particle of an atom has the less mass?
The Electron.
Valence electrons found where?
Valence electron are found in the outer shell of an atom. Depending on the number of valence electrons, the atom is more or less stable: fewer => less stable and more => more stable (inert). Stable = less likely to react with other atoms.
Why 1st ionization energy of Li is lower than that of Hydrogen?
1st ionization energy is the energy to remove one electron from a neutral atom. 2nd ionization energy is the energy to remove an electron from a positively charged ion. When this is done there is a stronger attraction for electrons in the ion than in the neutral atom because there is one less electron to 'interfere' with the electron being removed.
What is the difference between a filled and an unfilled orbital?
A filled orbital has either 2 electrons (if it is the first shell of an atom) or 8 electrons. This is the highest number of electrons these shell can hold Every orbital tends to complete itself to form a stable element. A filled orbital could be any orbital, either 1st, 2nd, second last or last shell of the atom. An unfilled orbital always has atleast one less electron than the shell can hold. It is always the last shell of an atom and always makes the atom unstable as atom tends to acquire inertness by trying to get this unfilled oribital filled.
