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All atoms in the first group (column) of the Periodic Table have only one electron in the outer shell. Those heavier than hydrogen (H) are called the alkali metals.
The alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
All have an outer s electron shell. The question asks for a single element in an "outer energy level" and all seven of these atoms fit the question.
There are other atoms which may be characterized as having a single outer electron, but the chemistry and physics of those atoms make things a bit more complicated and a longer discussion would be necessary instead of a simple answer to a simple question.
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∙ 11y ago
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∙ 9y agoThe elements that have only one electron in their outer shell are all of the Group 1 elements. These elements are also known as the alkali metals.
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∙ 11y agohydrogen is the element which has only one shell of electrons.
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∙ 13y agoHydrogen, Fluorine, Chlorine, Bromine, Iodine, Astatine, Ununseptium.
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∙ 12y agogroup 1 elements in the periodic table have 1 electron in outer most shell
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∙ 12y agohydrogen (H) and helium (He)
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∙ 12y agohydrogen (H) and helium (He)
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∙ 11y agoThe group 1 elements.
Amoya Campbell
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∙ 12y agoHydrogen
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What means outer energy level?
Valence electron
Can an electron in the outer energy level be called a valence electron?
Yes, it is correct.
What does a atom's outermost electron shell does?
The outer energy level is in the electron cloud surrounding the nucleus. Each ring that surrounds the nucleus is an energy level and contains a different number of electrons.
How many electrons fill the outer shell in hydrogen?
An energy level is the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have. There are no full energy levels in an atom of hydrogen. The first energy level of any atom can hold 2 electrons. Hydrogen only has one electron and it is in the first energy level.
The group that needs one more electron to fill its outer energy level?
Halogens
What element has three or fewer electrons in the outer energy level?
nobel gases has few electron in the outer energy level
How many electron are in its outer energy level?
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
How does electron configuration help you to predict the activity of metals?
The activity of any element depends on the number of electrons it has in its outer energy level, called valence electrons. Atoms in group one, metals have only one electron in their outer energy level, instead of two so they have incomplete outer energy levels; they are always looking to lose or share their electron with another atom to complete their outer energy level and become more stable. In contrast, the noble gases have complete outer energy levels so they do not interact with other elements. Thus, knowing the electron configuration enables you to determine the valence electrons and predict the reactivity of an element.
What uses the symbol for an element and dots representing the number of electrons in the elements outer energy level?
electron dot diagram
Is the chemical symbol for the element surrounded by as many dots as there are electrons in its outer energy level?
I had a science question that asked: An electron ______ is the chemical symbol for the element surrounded by as many dots as there are electrons in its outer energy level. That is pretty much the same as yours. I put dot diagram... Meaning electron dot diagram
What does the number of electrons in the outer energy level of an atom indicate about the element?
What it bonds with. If you have a noble gas (like Krypton), since its outer energy level is full, it won't bond with anything. But if you have Hydrogen, who has one electron in the outermost level, it can bond with any other element with enough space on it's outermost energy level.
What means outer energy level?
Valence electron
What is an electron in an atoms outer most energy level?
The electrons on the outtermost energy level of an atom is called a valence electron.
The Lewis electron dot system represents electrons in the -?
outer energy level
Hydrogen is grouped with alkali metals because it?
it has one electron in its outer energy level like all alkali metals
What is the name of the electron located in the outer most energy level?
The Valence electron
Can an electron in the outer energy level be called a valence electron?
Yes, it is correct.
