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Magnesium is a metal element. There are 12 electrons in a single atom.
Wiki User
∙ 9y ago
Wiki User
∙ 15y agoBeryllium has four, Magnesium has 12.
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What arethree alkaline-earth metals besides calcium?
Beryllium, magnesium and barium are three more alkaline earth metals.
How does the size of a beryllium atom compare with the size of an oxygen atom?
Oxygen is fairly smaller than Beryllium. The two have the same amount of orbital shells, but Oxygen has more protons, which pulls its electrons closer together, thus decreasing the overall size!
Which element is more reactive lithium of beryllium?
lithium
What is the most reactive alkaline earth metal?
Radium (Ra), atomic number 88, is the most reactive alkaline earth metal. It has the most energy levels of all the alkaline earth metals therefore it's electrons are more easily taken away.
Does Anions have more protons than electrons?
anions have more electrons than protons
Which two atoms will have their outer energy level filled with 2 electrons?
There are more than two such atoms. Perhaps there was a list of atoms you had to chose from. Anyway, two such atoms are beryllium and magnesium.
Which is more reactive barium magnesium or beryllium?
Ba; Barium
Which atoms will have their outer energy level filled with 2 electrons?
There are more than two such atoms. Perhaps there was a list of atoms you had to chose from. Anyway, two such atoms are beryllium and magnesium.
How many more valence electrons does magnesium need to have a full outer valence shell?
it needs six more electrons to have a full outer valence shell.
How many electrons does Magnesium need to complete the last shell?
A magnesium atom would need 6 electrons to complete its highest occupied electron shell. In practice, a magnesium atom almost never does this, because the energy required would be too great. Instead, the magnesium atom transfers 2 electrons to one or more atom that are more electronegative than magnesium and thereby forms a magnesium ion with an electrical charge of +2. In this ion, the highest occupied shell of a magnesium atom is completely empty of electrons.
How many electron shells does the beryllium atom have?
Two energy shells. Made up as 1s2, 2s2 Shells 1 & 2 each have only 's' orbital and each orbital has only two electrons in it. The outer shell '2' is more energetic. The electrons are paired and spin in opposite directions to each other.
What is the total number of electrons in a Mg2 positive ion?
The Magnesium atom will lose 2 of its electrons to become a Magnesium ion with 10 electrons. (Mg2+) How many electrons does a magnesium ion have? How many electrons does a fluoride ion have? How many electrons does a fluoride ion have?
What arethree alkaline-earth metals besides calcium?
Beryllium, magnesium and barium are three more alkaline earth metals.
Does beryllium have a isotope?
Beryllium has 4 protons and electrons and a variable number of neutrons, depending on the isotope. For other atomic properties see the links bellow.
Why is calcium more reactive than magnesium?
Calcium is more reactive than magnesium because it is larger than a magnesium atom because it has one more energy level. Valence electrons are on the outermost occupied energy level in the atom and they cause the atom to react, and thus the further the Valence electrons are from the nucleus, the more reactive they are. Therefore, calcium is more reactive than magnesium because the valence electrons on the calcium atom is farther from the nucleus.
What can be expected to give a spectrum most closely like that of the Helium atom Lithium?
Helium has two electrons around a nucleus so you would look for an element that has two electrons more then filled shells. Lithium has 2 electrons in a filled shell and 1 electron more so it wouldn't work too well. Beryllium has 2 electrons in a filled shell and 2 electrons more so it would work pretty good. Magnesium has 2 electrons in a filled shell, 8 electrons in the next filled shell and 2 more electrons so it would also work pretty good.
Is Beryllium a positive or negative ion?
Normally positive. However under the right conditions it could be either, as could anything.
