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The element in the same period as helium that has only one valence electron is lithium. Both helium and lithium are located in Period 1 of the Periodic Table, with helium in Group 18 (noble gases) and lithium in Group 1 (alkali metals). Lithium has the atomic number 3 and has one electron in its outermost shell, making it highly reactive.
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Which element has 1 valence electron and is in period 1.?
The element with 1 electron in period 1 would be hydrogen.
How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
Which p-block element has 4 valence electron and is in the third period?
Silicon is p-block element. It has 4 valence electrons. It is present in group-14.Titanium has 4 valence electrons. It is in the third period. Titanium is a metal element.
Which element is in group v of the periodic table and has 3 electron shells?
The element in group V of the periodic table with 3 electron shells is Phosphorus (P). Group V elements have 5 valence electrons and the number of electron shells corresponds to the period number on the periodic table, so a Group V element with 3 electron shells is in period 3.
Is helium an element mixture or compound?
Helium is an element. It is a noble gas. It is in the 18th period.
Which element has 1 valence electron and is in period 1.?
The element with 1 electron in period 1 would be hydrogen.
Which Element Has One Valence Electron And Is In Period 4?
Potassium (K) has one valence electron and is located in period 4 of the periodic table.
How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
Which p-block element has 4 valence electron and is in the third period?
Silicon is p-block element. It has 4 valence electrons. It is present in group-14.Titanium has 4 valence electrons. It is in the third period. Titanium is a metal element.
What is the element in period 3 with 6 valence electrons?
Selenium. As you go across the groups, not counting the transition metals, a valence electron is added.
What is the relationship between the electron configuration of an element and the period in which that element appear in the periodic table?
Electron configuration is the arrangement of elements according to their increasing atomic numbers whiles period is the arrangement of elements according to the increasing number of valence electrons.
How many electron shells and how many valence electrons are in an atom of an element found in period 3 and group 16 of the periodic table?
This element is sulfur; the electron configuration of sulfur is [Ne]3s23p4. Sulfur has three electron shells cotaining 2, 8 and 6 electrons. The last six are valence electrons.
Which element is in group v of the periodic table and has 3 electron shells?
The element in group V of the periodic table with 3 electron shells is Phosphorus (P). Group V elements have 5 valence electrons and the number of electron shells corresponds to the period number on the periodic table, so a Group V element with 3 electron shells is in period 3.
He lightest element in period 2?
Helium is a period 1 element.
Are periods valence electrons or electron shell?
The period tells you the valence ELECTRON SHELL (energy level). The group tells you the number of valence electrons.
What patterns are noted in the electron structures of elements found in a periodic and in a family in the periodic table?
In a period, the number of electron shells increases from left to right across the period, resulting in an increase in energy levels and electron shells. In a family (or group), elements have the same number of electrons in their outermost shell, leading to similar chemical properties. Additionally, elements within the same family tend to have similar valence electron configurations.
The number of valence electrons increases with increase in what from the beginning to the end of period 2?
The number of valence electrons increases with increase in atomic number from the beginning to the end of period 2. The maximum number of valence electrons possible in any outermost shell is 8.
