0
Magnesium has 12 electrons and needs 2 more electrons to complete its outer shell, which can hold a total of 8 electrons.
Add your answer:
Earn +20 pts
How many electrons does Magnesium need to complete the last shell?
Magnesium needs to lose 2 electrons to complete its last shell, as it has 2 electrons in its outermost shell. By losing these 2 electrons, it will achieve a stable electron configuration similar to a noble gas.
How many electron shell does magnesium have?
Atomic magnesium has three shells.The shell numbering parallels the row number of the first three rows of the periodic table.Magnesium is in the third row. We number these 1,2,3 etc. and because of historical reasons, we also label them as K,L,M ... etc.Electron configuration of magnesium's shells are as follows.1s22s2 and 2p6 (one shell, two orbitals: 2s and 2p, of which the last one has 3 sub-orbitals: 2px, 2py, 2pz, each filled with 2 electrons)3s2With 2 electrons in the first shell, 8 electrons in the second and the last 2 in the 3rd, all 12 electrons of magnesium are accounted for. Done.Aside: The next row is where it gets tricky, but that is a separate question.
What is the total number of valence electrons in an atom of magnesium in the ground state?
Magnesium has atomic number 12 and so has 12 protons in the nucleus and 12 electrons in the neutral atom. It has three stable isotopes with 12, 13 or 14 neutrons. The neutrons have no real effect on the electronic structure. The ground state consists of the 1st shell of two electrons and the 2nd shell of 8 electrons. The last two electrons begin the 3rd shell and reside in the subshell named 3s. The last two electrons are the valence electrons.
How many valence electrons does Sulfur?
there are 6 electrons in valence shell of sulphur so it accepts two electrons to complete the octet (8 electrons in last shell) so its valency in ionic compounds is always - 2.
How many electrons would be present in the valence shell of a iron atom?
There are 2 electrons in the valence shell of an iron atom because it is in Group 8 of the periodic table and has 8 valence electrons. However, iron typically loses 2 electrons to form a2+ ion, leaving 0 electrons in its valence shell.
How many electrons does Magnesium need to complete the last shell?
Magnesium needs to lose 2 electrons to complete its last shell, as it has 2 electrons in its outermost shell. By losing these 2 electrons, it will achieve a stable electron configuration similar to a noble gas.
How many electrons are found in the last energy shell of magnesium?
2 yea 2
How many outer shells are there in magnesium?
Magnesium has 3 outer electron shells. It has 12 electrons with 2 in the first shell, 8 in the second shell, and 2 in the third shell.
How many electron shell does magnesium have?
Atomic magnesium has three shells.The shell numbering parallels the row number of the first three rows of the periodic table.Magnesium is in the third row. We number these 1,2,3 etc. and because of historical reasons, we also label them as K,L,M ... etc.Electron configuration of magnesium's shells are as follows.1s22s2 and 2p6 (one shell, two orbitals: 2s and 2p, of which the last one has 3 sub-orbitals: 2px, 2py, 2pz, each filled with 2 electrons)3s2With 2 electrons in the first shell, 8 electrons in the second and the last 2 in the 3rd, all 12 electrons of magnesium are accounted for. Done.Aside: The next row is where it gets tricky, but that is a separate question.
Does helium have 2 electrons in its last shell?
Yes. It has one shell, and there are 2 electrons in this shell.
What is the total number of valence electrons in an atom of magnesium in the ground state?
Magnesium has atomic number 12 and so has 12 protons in the nucleus and 12 electrons in the neutral atom. It has three stable isotopes with 12, 13 or 14 neutrons. The neutrons have no real effect on the electronic structure. The ground state consists of the 1st shell of two electrons and the 2nd shell of 8 electrons. The last two electrons begin the 3rd shell and reside in the subshell named 3s. The last two electrons are the valence electrons.
How many electrons does silicon have in its outer shell?
4V V-Valence Electrons Valence Electrons-Last electron (which is on the outer shell)
How many electron does a noble gas have in its last shell?
Helium has 2 electrons in its last (and only) shell. All other noble gases have 8 electrons in its valence shell.
How many valence electrons does Sulfur?
there are 6 electrons in valence shell of sulphur so it accepts two electrons to complete the octet (8 electrons in last shell) so its valency in ionic compounds is always - 2.
What is the maximum number of electrons that a transition metal can hold in his second to last shell?
The maximum number of electrons that a transition metal can hold in its second to last shell is 10 electrons. This is because transition metals typically have 2 electrons in their outermost shell, and the second to last shell can hold up to 8 electrons.
How many electrons would be present in the valence shell of a iron atom?
There are 2 electrons in the valence shell of an iron atom because it is in Group 8 of the periodic table and has 8 valence electrons. However, iron typically loses 2 electrons to form a2+ ion, leaving 0 electrons in its valence shell.
Valence electrons are the electrons found on the last shell of an atom true or fase?
True
