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The nunmber of electrons present (or missing) from an atom (ion) affects other atoms' ability to merge with other atoms that might have complementary arrangemensts of electrons in their atoms. We call these valence electrons, and they basically control the relationship of atoms, by allowing the"sharing" of the outtermost shell's electrons between atoms.
Take the simple water molecule, for instance. It has one oxygen atom and two hydrogen atoms. The two hydrogen atoms are balanced becauase of the one electron and one proton, but the K shell can hold 2 electrons so the hydrogen atom has a valence of -1.
Looking at the oxygen atom, now, we see it is also balances, because there are eight protons and eighth electrons. It has a valance of 2 because the L shell is not full with with only six of its eight electrons. (2 in the K shell, 6 in the L shell.)
This sets up the natual combination of two hydrogen atoms with one oxygen atom, The Hydrogen shares its valence electron with one of the two from the oxygen, while the other hydrogrem atom shares its electron with the other valence electron on the other oxygen. This is water.
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What is the first quantum number of a 2s2 electron in phosphorus?
The first quantum number of a 2s electron in phosphorus is the principal quantum number, which specifies the energy level of the electron shell. For a 2s electron, the principal quantum number is 2.
What information does the first quantum number of an electron give?
The energy level the electron is in
What could the fourth quantim number of 3p3 electron be?
The fourth quantum number, known as the electron spin quantum number, can have a value of +1/2 or -1/2 for an electron in an orbital.
What is the total electron number for phosphorus?
The total electron number for phosphorus is 15 because phosphorus has 15 electrons.
Which of these elements has the same number of electron orbitals as the element sodium?
The element magnesium has the same number of electron orbitals as sodium - both have three electron orbitals. Sodium and magnesium are in the same period on the periodic table, which means they have the same number of electron shells.
What is the first quantum number of a 2s2 electron in phosphorus?
The first quantum number of a 2s electron in phosphorus is the principal quantum number, which specifies the energy level of the electron shell. For a 2s electron, the principal quantum number is 2.
What information does the first quantum number of an electron give?
The energy level the electron is in
What is an electron's atomic mass number?
The electron has no atomic mass number. The mass of an electron is roughly 1/1800 of the mass of a proton or neutron.
What could the fourth quantim number of 3p3 electron be?
The fourth quantum number, known as the electron spin quantum number, can have a value of +1/2 or -1/2 for an electron in an orbital.
What number tells you the number of valence electron?
group number
Mass number of an electron?
The mass number of an electron is 5.485 799 095 x 10-4 amu.
What is the total electron number for phosphorus?
The total electron number for phosphorus is 15 because phosphorus has 15 electrons.
What do you to find a electron of an isotope?
subtract the number of protons from the number of electrons. The above answer does not answer the question!!
How many electron rings are found in each period of the periodic table?
The number of electron rings in each period of the periodic table corresponds to the period number. For example, in the first period (row), there is only one electron ring; in the second period, there are two electron rings, and so on.
Which of these elements has the same number of electron orbitals as the element sodium?
The element magnesium has the same number of electron orbitals as sodium - both have three electron orbitals. Sodium and magnesium are in the same period on the periodic table, which means they have the same number of electron shells.
What is the number of electron orbits in tantalum?
Tantalum has 73 electrons. The number of electron orbits in an atom is equal to the number of electron shells, which is determined by the quantum number n. Tantalum's electron configuration is [Xe] 4f14 5d3 6s2, indicating that it has 6 electron orbits.
What is the number of electron shells in samarium?
Samarium has six electron shells.
