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Hydrogen. Since it has room to gain or lose no more than one electron in its single shell, it can therefore only have a valence of 1.
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What is the number of valence electrons the element hydrogen has?
One.Hydrogen has only 1 electron in total, and it is also a valence electron.
How many valence electrons are contained in an atom of Rb?
1: This is the correct answer for any element in wide form Periodic Table Group 1.
How many valence electrons does P have?
it has 15 valence electrons (P2) -original answermy answer- That is incorrect An element can only have a Max of 8 valence electrons.Phosphorous has 5 valence ElectronsSource: 10th Grade Chemistry
What element has 1 valence in its 4 shell?
cacahead
How is the reactivity of a element releated to the outer shell?
The outer, or valence shell of electrons is closely related to an element's reactivity. First of all, the valence electrons are the only part of an atom that participate in a chemical reaction. The closer an atom's number of valence electrons is to eight (remember the octet rule), the more reactive it typically is. Elements with only 1 valence electron* (group 1) and elements with 7 valence electrons (group 17) are the most reactive. *Remember, having only 1 valence electron means once you lose it, you now have 8 electrons that were in the shell below it.*
Which element has 1 valence electron and is in period 1.?
The element with 1 electron in period 1 would be hydrogen.
Have 1 valence electron?
The atoms with only 1 valence electron are the elements located on the very left of the periodic table, with atoms such as hydrogen, natrium and potassium. These are called alkali metals.
What element has 1 valence electron and 19 protons?
Potassium
What element has only one valence electron and is extremely reactive?
HYDROGEN
If an element has 1 valence electron what group is it in?
That element would be in the Alkali Metals (group one)
Does the valence electrons equal the number of protons?
Rarely. The number of valence electrons of an element depends on it's position on the periodic table. Any given element can have between 1-8 valence electrons. The number of valence electrons increases left to right on the periodic table, while the number of protons, which determine the atomic mass and identity of an element, increase in general. Therefore the number of valence electrons can only equal the number of protons at the 8th element and below (neon).
How many valence electrons does the element cesium have?
A cesium atom has 1 valence electron. It is an alkali metal, and all alkali metals have 1 valence electron. The electron configuration for cesium is (Rn)7s1. The single electron in the 7s sublevel is its valence electron.
