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Helium, although with its two electrons, its outer level of electrons are complete. In addition, all of the elements in family IIA, the alkaline earth metals, have two electrons in their outer energy level. They include: Be (Beryllium), Mg (Magnesium), Ca (Calcium), Sr (Strontium), Ba (Barium), and Ra (Radium).
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoGroup 2 has two valence electrons. Which is also known as the Alkali Earth Metals. Which is Be, Mg, Ca, Sr, Ba and Ra..
Nicisnemo
Wiki User
∙ 15y agoif you mean the number of valence in an electron, it is group 2 in the Periodic Table Group 1= 1 electron Group2= 2 group 13= 3 g. 14= 4 group15=5 .... group 18= 8
Wiki User
∙ 9y agoHelium has two electrons in its valence shell. The valence shell is the outermost orbital shell of an atom.
Wiki User
∙ 15y agoManganese
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How many electrons are in its outer energy level for Magnesium?
There are 2 outer shell electrons in Magnesium. Remember, it's in the "s" orbital, which can only accomodate 2 electrons.
How many electrons in sulfurs outer level?
There are 2 electrons in the inner level, 8 electrons in the middle level, and exactly 6 electrons in Sulfurs outer level.
How many electrons do beryllium and magnesium have in there outer energy levels?
Beryllium and magnesium have two electrons in their outermost energy level, as do all Group 2 elements.
Does an atom of helium have eight electrons in its outer energy level?
the largest number of electrons an atom of helium can have is 2, because it is in the first period, which means it can only have one energy level, which has a maximum capacity of two electrons
How many electrons does an outer energy level of chlorine atom have?
Chlorine has atomic number 17, so it has 17 electrons. They are arranged as 1s2 2s2 sp6 3s2 3p5. Thus, the outer energy level (n=3) has 7 electrons (2 in the 3s and 5 in the 3p).
How many electrons are in the outer energy level of dubnium?
Two electrons
How many electrons are in its outer energy level for Magnesium?
There are 2 outer shell electrons in Magnesium. Remember, it's in the "s" orbital, which can only accomodate 2 electrons.
How many electrons can an atom's fourth outer energy level contain?
The fourth outer energy level of an atom can contain a maximum of 32 electrons. This is because each energy level can hold a maximum of 2n^2 electrons, where n is the principal quantum number of the energy level. In this case, the fourth energy level has a principal quantum number of 4, so it can hold 2(4^2) = 32 electrons.
Electrons are those found in the outermost energy level of an atom?
Electrons are those found in the outermost energy level of an atom?They are called valence electrons.
How many electrons does an atom usually need in its outer energy level to be stable?
2.
How many electrons does it neeed to gain to have a full outer shell?
1st energy level- 2 electrons 2nd energy level- 8 electrons 3rd energy level- 18 electrons To calculate the number of electrons other energy levels can hold, use the formula 2n^2. For example, to calculate the number of electrons the fourth level can hold, the equation would be 2(4)^2. This means that the fourth energy can hold 32 electrons. Same process for other levels.
Identify the element whose electrically neutral atom has 2 energy levels with 2 electrons in the outer energy level?
beryllium
How many electrons in sulfurs outer level?
There are 2 electrons in the inner level, 8 electrons in the middle level, and exactly 6 electrons in Sulfurs outer level.
How many valence electrons in fluorine are needed to have a filled outer energy level?
it has 2 because the first energy level has 1
Why is mercury poor at sharing electrons?
Mercury has 80 electrons distributed in 6 energy levels,; namely:First Energy Level: 2Second Energy Level: 8Third Energy Level: 18Fourth Energy Level: 32Fifth Energy Level: 18Sixth Energy Level: 2Accordingly, Mercury has on the outer shell 2 electrons to share with in any chemical reaction by an ionic bond.
How many electrons do beryllium and magnesium have in there outer energy levels?
Beryllium and magnesium have two electrons in their outermost energy level, as do all Group 2 elements.
What element with 1-2 electrons in the outer energy level?
Hydrogen, helium, alkali, alkaline metals.
